MILITARY Parallel I/O Ports 98

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Part	Manufacturer	Peripheral IC Type	Temperature Grade	Terminal Form	No. of Terminals	Package Code	Package Shape	Package Body Material	Surface Mount	Maximum Supply Voltage	Screening Level	Power Supplies (V)	Package Style (Meter)	Package Equivalence Code	Minimum Supply Voltage	Maximum Operating Temperature	Minimum Operating Temperature	Terminal Finish	Terminal Position	No. of Ports	Maximum Seated Height	Width	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	Total Dose (V)	Technology	Maximum Supply Current	Nominal Supply Voltage	Sub-Category	Terminal Pitch	JESD-30 Code	Qualification	JESD-609 Code	No. of I/O Lines
ZPSD313V-25LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
Z8420BD2	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.25 V		5	IN-LINE	DIP40,.6	4.75 V	125 Cel	-55 Cel	TIN LEAD	DUAL	2		15.24 mm					CMOS	100 mA	5 V	Other Microprocessor ICs	2.54 mm	R-CDIP-T40	Not Qualified	e0	20
ZPSD311R-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD312R-15LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
PSD313-A-20JM	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	QCCJ	SQUARE	PLASTIC/EPOXY	YES	5.5 V			CHIP CARRIER		4.5 V	125 Cel	-55 Cel		QUAD	3	4.57 mm	16.5862 mm			16.5862 mm		CMOS		5 V		1.27 mm	S-PQCC-J44	Not Qualified		19
ZPSD302-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD312V-20LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD302R-15LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD311R-15LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
Z8536D2N	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.25 V		5	IN-LINE	DIP40,.6	4.75 V	125 Cel	-55 Cel	TIN LEAD	DUAL	3		15.24 mm					CMOS		5 V	Parallel IO Port	2.54 mm	R-CDIP-T40	Not Qualified	e0	20
ZPSD302-15LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD312R-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD301-15LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD312V-25LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD311-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD301-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD311V-20LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD301R-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
PSD403A2-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	68	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel		QUAD	5	4.57 mm	24.105 mm			24.105 mm		CMOS		5 V		1.27 mm	S-CQCC-J68	Not Qualified		40
ZPSD311V-25LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD312-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD303V-20LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD301V-20LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD311V-15LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD303V-25LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD304V-25LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel		QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified		19
ZPSD311-15LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
PSD403A2-15LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	68	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel		QUAD	5	4.57 mm	24.105 mm			24.105 mm		CMOS		5 V		1.27 mm	S-CQCC-J68	Not Qualified		40
ZPSD313-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD302V-25LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		2.7 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		3 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD302R-70LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
ZPSD312-15LMB	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	J BEND	44	WQCCJ	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER, WINDOW		4.5 V	125 Cel	-55 Cel	GOLD	QUAD	3	4.57 mm	16.51 mm			16.51 mm		CMOS		5 V		1.27 mm	S-CQCC-J44	Not Qualified	e4	19
Z84C20BD2	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.5 V		5	IN-LINE	DIP40,.6	4.5 V	125 Cel	-55 Cel	TIN LEAD	DUAL	2		15.24 mm					CMOS	8 mA	5 V	Other uPs/uCs/Peripheral ICs	2.54 mm	R-CDIP-T40	Not Qualified	e0	20
Z84C20AD2	STMicroelectronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.5 V		5	IN-LINE	DIP40,.6	4.5 V	125 Cel	-55 Cel	TIN LEAD	DUAL	2		15.24 mm					CMOS	5 mA	5 V	Other Microprocessor ICs	2.54 mm	R-CDIP-T40	Not Qualified	e0	20
8X376/BXA	NXP Semiconductors	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	24		RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.5 V			IN-LINE		4.5 V	125 Cel	-55 Cel		DUAL	1							CMOS		5 V			R-CDIP-T24			8
5962-8685101XA	NXP Semiconductors	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	24	DIP	RECTANGULAR	CERAMIC	NO		38535Q/M;38534H;883B	5	IN-LINE	DIP24,.4		125 Cel	-55 Cel	Tin/Lead (Sn/Pb) - hot dipped	DUAL								CMOS		5 V	Parallel IO Port	2.54 mm	R-XDIP-T24	Not Qualified	e0
5962-8757601XA	NXP Semiconductors	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	5.5 V	MIL-STD-883		IN-LINE		4.5 V	125 Cel	-55 Cel		DUAL	1							CMOS		5 V			R-XDIP-T24	Not Qualified		8
8X371/BXA	NXP Semiconductors	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	24		RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.25 V			IN-LINE		4.75 V	125 Cel	-55 Cel		DUAL	1							CMOS		5 V			R-CDIP-T24			8
5962-8757601XX	NXP Semiconductors	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	24	DIP	RECTANGULAR	UNSPECIFIED	NO	5.5 V	MIL-STD-883		IN-LINE		4.5 V	125 Cel	-55 Cel		DUAL	1							CMOS		5 V			R-XDIP-T24	Not Qualified		8
8X372/BXA	NXP Semiconductors	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	24		RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.5 V			IN-LINE		4.5 V	125 Cel	-55 Cel		DUAL	1							CMOS		5 V			R-CDIP-T24			8
8406602XX	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	NO LEAD	44	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V			CHIP CARRIER		4.5 V	125 Cel	-55 Cel	TIN LEAD	QUAD	3	3.05 mm	16.535 mm	NOT SPECIFIED	NOT SPECIFIED	16.535 mm		CMOS		5 V		1.27 mm	S-CQCC-N44	Qualified	e0	24
5962R9581901QQX	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.5 V	MIL-PRF-38535 Class Q		IN-LINE		4.5 V	125 Cel	-55 Cel		DUAL	3	5.72 mm	15.24 mm				100k Rad(Si)	CMOS		5 V		2.54 mm	R-CDIP-T40	Not Qualified		24
MD82C55A	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	5.5 V			IN-LINE		4.5 V	125 Cel	-55 Cel	TIN LEAD	DUAL	3	5.72 mm	15.24 mm					CMOS		5 V		2.54 mm	R-GDIP-T40	Not Qualified	e0	24
MR82C55A/883	Renesas Electronics		MILITARY	NO LEAD	44	QCCN	SQUARE	CERAMIC	YES		38535Q/M;38534H;883B	5	CHIP CARRIER	LCC44,.65SQ		125 Cel	-55 Cel		QUAD								CMOS	10 mA	5 V	Parallel IO Port	1.27 mm	S-XQCC-N44	Not Qualified
5962R9581901VQX	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, METAL-SEALED COFIRED	NO	5.5 V	MIL-PRF-38535 Class V		IN-LINE		4.5 V	125 Cel	-55 Cel		DUAL	3	5.72 mm	15.24 mm				100k Rad(Si)	CMOS		5 V		2.54 mm	R-CDIP-T40	Not Qualified		24
MD82C55B	Renesas Electronics		MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC	NO			5	IN-LINE	DIP40,.6		125 Cel	-55 Cel	Tin/Lead (Sn/Pb)	DUAL								CMOS	1 mA	5 V	Parallel IO Port	2.54 mm	R-XDIP-T40	Not Qualified	e0
8406602XA	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	NO LEAD	44	QCCN	SQUARE	CERAMIC, METAL-SEALED COFIRED	YES	5.5 V	MIL-STD-883		CHIP CARRIER		4.5 V	125 Cel	-55 Cel	TIN LEAD	QUAD	3	3.05 mm	16.535 mm			16.535 mm		CMOS		5 V		1.27 mm	S-CQCC-N44	Qualified	e0	24
8406602QX	Renesas Electronics	PARALLEL IO PORT, GENERAL PURPOSE	MILITARY	THROUGH-HOLE	40	DIP	RECTANGULAR	CERAMIC, GLASS-SEALED	NO	5.5 V			IN-LINE		4.5 V	125 Cel	-55 Cel	TIN LEAD	DUAL	3	5.72 mm	15.24 mm	NOT SPECIFIED	NOT SPECIFIED			CMOS		5 V		2.54 mm	R-GDIP-T40	Qualified	e0	24

Parallel I/O Ports

Parallel I/O (Input/Output) ports are a type of interface that allows a microcontroller or microprocessor to communicate with other devices in a parallel fashion. This means that multiple bits of data can be transmitted or received simultaneously, as opposed to serial communication which transmits or receives data one bit at a time.

Parallel I/O ports are commonly found in a wide range of electronic devices, including computers, printers, and industrial control systems. They typically consist of a number of input and output lines, with each line representing a single bit of data. The number of lines can vary depending on the specific device, with some systems having only a few lines while others may have dozens or even hundreds.

One of the advantages of parallel I/O ports is their ability to transfer large amounts of data quickly and efficiently. This makes them particularly useful in applications where real-time data acquisition or high-speed communication is required. For example, parallel ports are commonly used in printers and other peripherals to transfer large amounts of data quickly.

However, one of the limitations of parallel I/O ports is that they require a large number of pins on the microcontroller or microprocessor to accommodate all of the data lines. This can make them difficult to implement in systems with limited space or where a large number of I/O lines are required. In addition, parallel I/O ports can be more susceptible to noise and interference compared to serial communication, which can affect data integrity and transmission speeds.