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What is UPD75P316B?

This electronic component, produced by the manufacturer "NEC", performs the same function as "4-BIT SINGLE-CHIP MICROCOMPUTER".


UPD75P316B Datasheet PDF - NEC

Part Number UPD75P316B
Description 4-BIT SINGLE-CHIP MICROCOMPUTER
Manufacturers NEC 
Logo NEC Logo 


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DATA SHEET
MOS INTEGRATED CIRCUIT
µPD75P316B
4-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION
The µPD75P316B is a product of the µPD75316B with its built-in ROM having been replaced with the one-
time PROM.
It is most suitable for test production during system development and for production in small amounts since
it can operate under the same supply voltage as mask products.
The one-time PROM product is capable of writing only once and is effective for production of many kinds of
sets in small quantities and early startup.
The EPROM product allows programs to be written and rewritten, making it ideal for system evaluation.
Functions are described in detail in the following User'S Manual, which should be read when carrying out
design work.
µPD75308 User's Manual: IEM-5016
FEATURES
Compatible (excluding mask option) with the µPD75312B/75316B (mask products)
Memory capacity
• Program memory (PROM) : 16256 × 8 bits
• Data memory (RAM)
: 1024 × 4 bits
• Ideal for small set as camera, etc.
ORDERING INFORMATION
Ordering Code
Package
µPD75P316BGC-3B9 80-pin plastic QFP (s14 mm)
µPD75P316BGK-BE9 80-pin plastic QFP (fine pitch) (s12 mm)
µPD75P316BKK-T*
80-pin ceramic WQNF (LCC with window)
* Under Development
Internal ROM Quality Grade
One-time PROM Standard
One-time PROM Standard
EPROM
Not applicable
(for function evaluation)
Please refer to “Quality grade on NEC Semiconductor Devices” (Document number IEI-1209) published by
NEC Corporation to know the specification of quality grade on the devices and its recommended applications.
The µPD75P316B EPROM product does not provide a level of reliability suitable for use as a
volume production product for customers' devices. The EPROM product should be used solely for
function evaluation in experiments or preproduction.
In descriptions common to one-time PROM products and EPROM products in this document, the term
"PROM" is used.
The information in this document is subject to change without notice.
Document No. IC-3189
(O.D. No. IC-8696)
Date Published January 1994P
Printed in Japan
The mark 5 shows the major revised points.
© NEC Corporation 1994

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UPD75P316B equivalent
µPD75P316B
1. PIN FUNCTIONS
1.1 PORT PINS (1/2)
Pin Name
P00
P01
P02
P03
P10
P11
P12
P13
P20
P21
P22
P23
P30 *2
P31 *2
P32 *2
P33 *2
Input/Output
Dual-Function
Pin
Function
8-bit I/O
Input
Input/output
Input/output
Input/output
INT4
SCK
SO/SB0
SI/SB1
4-bit input port (PORT0)
Internal pull-up resistor specification by
software is possible for P01 to P03 as a 3-bit
unit.
×
INT0
With noise elimination circuit
Input
INT1
INT2
4-bit input port (PORT1)
Internal pull-up resistor specification by
software is possible as a 4-bit unit.
×
TI0
PTO0
Input/output
— 4-bit input/output port (PORT2)
Internal pull-up resistor specification by
PCL software is possible as a 4-bit unit.
×
BUZ
Input/output
LCDCL MD0
SYNC MD1
MD2
Programmable 4-bit input/output port (PORT3)
Input/output settable bit-wise.
Internal pull-up resistor specification by
software is possible as a 4-bit unit.
MD3
×
Afer Reset
Input
I/O Circuit
Type*1
B
F -A
F -B
M-C
Input
B -C
Input
E-B
Input
E-B
P40 to P43*2 Input/output
N-ch open-drain 4-bit input/output port (PORT
4).
Data input/output pins for program memory
(PROM) write/verify (low-order 4 bits).
High impedance M - A
P50 to P53 *2 Input/output
P60
P61
Input/output
P62
P63
P70
P71
Input/output
P72
P73
N-ch open-drain 4-bit input/output port (PORT
5)
Data input/output pins for program memory
(PROM) write/verify (high-order 4 bits).
KR0
Programmable 4-bit input/output port (PORT6).
KR1 Input/output settable bit-wise.
Internal pull-up resistor specification by
KR2 software is possible as a 4-bit unit.
KR3
KR4
KR5 4-bit input/output port (PORT7).
Internal pull-up resistor specification by
KR6 software is possible as a 4-bit unit.
KR7
High impedance M - A
Input
F -A
Input
F -A
* 1.
: Indicates a Schmitt-triggered input.
2 . Direct LED drive capability.
5


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