83C751 Datasheet, PDF (2/24 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 2K/64 OTP/ROM, I2C, low pin count

Philips Semiconductors
80C51 8-bit microcontroller family
2K/64 OTP/ROM, I²C, low pin count
Product specification
83C751/87C751
DESCRIPTION
The Philips 83C751/87C751 offers the advantages of the 80C51
architecture in a small package and at low cost.
The 8XC751 Microcontroller is fabricated with Philips high-density
CMOS technology. Philips epitaxial substrate minimizes CMOS
latch-up sensitivity.
The 8XC751 contains a 2k × 8 ROM (83C751) EPROM (87C751), a
64 × 8 RAM, 19 I/O lines, a 16-bit auto-reload counter/timer, a
five-source, fixed-priority level interrupt structure, a bidirectional
inter-integrated circuit (I²C) serial bus interface, and an on-chip
oscillator.
The on-board inter-integrated circuit (I²C) bus interface allows the
8XC751 to operate as a master or slave device on the I²C small
area network. This capability facilitates I/O and RAM expansion,
access to EEPROM, processor-to-processor communication, and
efficient interface to a wide variety of dedicated I²C peripherals.
FEATURES
• 80C51 based architecture
• Inter-Integrated Circuit (I²C) serial bus interface
• Small package sizes
– 24-pin DIP (300 mil “skinny DIP”)
– 24-pin Shrink Small Outline Package
– 28-pin PLCC
• 87C751 available in one-time programmable plastic packages
• Wide oscillator frequency range
• Low power consumption:
– Normal operation: less than 11mA @ 5V, 12MHz
– Idle mode
– Power-down mode
• 2k × 8 ROM (83C751)
2k × 8 EPROM (87C751)
• 64 × 8 RAM
• 16-bit auto reloadable counter/timer
• Fixed-rate timer
• Boolean processor
• CMOS and TTL compatible
• Well suited for logic replacement, consumer and industrial
applications
• LED drive outputs
PIN CONFIGURATIONS
P3.4/A4 1
P3.3/A3 2
P3.2/A2/A10 3
P3.1/A1/A9 4
P3.0/A0/A8 5
P0.2/V_PP 6
P0.1/SDA/OE–PGM ₇
P0.0/SCL/ASEL ₈
RST 9
X2 10
X1 11
V_SS 12
PLASTIC
DUAL
IN-LINE
PACKAGE
AND
SHRINK
SMALL
OUTLINE
PACKAGE
24 V_CC
23 P3.5/A5
22 P3.6/A6
21 P3.7/A7
20 P1.7/T0/D7
19 P1.6/INT1/D6
18 P1.5/INT0/D5
17 P1.4/D4
16 P1.3/D3
15 P1.2/D2
14 P1.1/D1
13 P1.0/D0
4 1 26
5
25
PLASTIC
LEADED
CHIP
CARRIER
11
19
Pin Function
1 P3.4/A4
2 P3.3/A3
3 P3.2/A2/A10
4 P3.1/A1/A9
5 NC*
6 P3.0/A0/A8
7 P0.2/V_PP
8 P0.1/SDA/OE-PGM
9 P0.0//SCLASEL
* DO NOT CONNECT
12
18
PinFunction
10 NC*
11 RST
12 X2
13 X1
14 V_SS
15 P1.0/D0
16 P1.1/D1
17 P1.2/D2
18 P1.3/D3
Pin Function
19 P1.4/D4
20 P1.5/INT0/D5
21 NC*
22 NC*
23 P1.6/INT1/D6
24 P1.7/T0/D7
25 P3.7/A7
26 P3.6/A6
27 P3.5/A5
28 V_CC
SU00315
1998 May 01
2
853-0599 19326