Philips 83C748 87C748 80C51 8-bit Microcontroller Family 2K 64 OTP ROM, Low Pin Count User Manual
Summary
This advanced microcontroller, part of the robust 80C51 family, offers the advantages of established architecture in a low pin count, compact package format. The manual provides comprehensive details on its operation, covering features like integrated 2k ROM/EPROM memory, 64x8 RAM, multiple I/O ports, and an auto-reload counter/timer. Ideal for engineers developing logic replacement, consumer, or general industrial electronic systems requiring reliable performance and low power consumption.
Page 1 Text Content
INTEGRATED CIRCUITS
83C748/87C748 80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count
Preliminary specification 1999 Apr 15 Supersedes data of 1998 Apr 23 IC20 Data Handbook
Page Summary Contents For Philips 83C748 87C748 80C51 8-bit Microcontroller Family 2K 64 OTP ROM, Low Pin Count User Manual
Page 1
INTEGRATED CIRCUITS 83C748/87C748 80C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count Preliminary specification 1999 Apr 15 Supersedes data of 1998 Apr 23 IC20 Data Handbook
Page 2
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count DESCRIPTION PIN CONFIGURATIONS The Philips 83C748/87C748 offers the advant...
Page 3
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count BLOCK DIAGRAM IN IO PORT 0 IS DRIVERS RAM ADDR PORT 0 ROM/ REGISTER LATCH ...
Page 4
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count PIN DESCRIPTIONS PIN NO. DIP/ MNEMONIC LCC TYPE NAME AND FUNCTION VSS Circ...
Page 5
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count DC ELECTRICAL CHARACTERISTICS Tamb = 0°C to +70°C, VCC = 5V ±10%, VSS = 0V...
Page 6
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count AC ELECTRICAL CHARACTERISTICS Tamb = 0°C to +70°C, VCC = 5V ±10%, VSS = 0V...
Page 7
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count MAX ACTIVE ICC ICC (m A) TYP ACTIVE ICC MAX IDLE ICC TYP IDLE ICC 4MHz 8MH...
Page 8
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count DIFFERENCES BETWEEN THE 8XC748 AND THE Interrupt Subsystem – Fixed Priorit...
Page 9
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count Table 2. 8XC748 Special Function Registers DIRECT BIT ADDRESS, SYMBOL, OR ...
Page 10
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count TCON Register Interrupts The interrupt structure is a four-source, one-lev...
Page 11
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count 87C748 PROGRAMMING CONSIDERATIONS the EPROM array is then placed on Port 1...
Page 12
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count Security Bits Security bit 2, the verify inhibit bit, prevents verificatio...
Page 13
Philips Semiconductors Preliminary specification 83C748/87C74880C51 8-bit microcontroller family 2K/64 OTP/ROM, low pin count A0–A10 P3.0–P3.7 VCC +5V ADDRESS STROBE P0.0/ASEL VSS PROGRAMMING PULSES V...
Page 14
Philips Semiconductors Preliminary specification 80C51 8-bit microcontroller family, 2K/64 OTP/ROM, low pin count DIP24: plastic dual in-line package; 24 leads (300 mil) SOT222-1 1999 Apr 15
Page 15
Philips Semiconductors Preliminary specification 80C51 8-bit microcontroller family, 2K/64 OTP/ROM, low pin count PLCC28: plastic leaded chip carrer; 28 leads; pedestal SOT261-3 1999 Apr 15
Page 16
Philips Semiconductors Preliminary specification 80C51 8-bit microcontroller family, 2K/64 OTP/ROM, low pin count SSOP24: plastic shrink small outline package; 24 leads; body width 5.3 mm SOT340-1 199...
Page 17
Philips Semiconductors Preliminary specification 80C51 8-bit microcontroller family, 2K/64 OTP/ROM, low pin count NOTES 1999 Apr 15
Page 18
Philips Semiconductors Preliminary specification 80C51 8-bit microcontroller family, 2K/64 OTP/ROM, low pin count Data sheet status Data sheet Product Definition [1] status status Objective Developmen...
Manual Details
| Brand | Philips |
|---|---|
| Pages | 18 |
| File Size | 147.22 KB |
| Published | July 10, 2026 |
3 views
Enter the captcha to get the download link:
Frequently Asked Questions
What are the power consumption characteristics of this microcontroller?
Normal operation consumes less than 11mA @ 5V and 12MHz, while idle mode requires low current.
What kind of programming or memory options does it support?
It supports a 2k x 8 ROM (83C748) and EPROM (87C748), with the latter available in One Time Programmable (OTP) form.
Is this device suitable for TTL logic signals?
Yes, the microcontroller architecture is CMOS and TTL compatible.
Can this product be used in critical life support systems?
No. These products are not designed for use in life support appliances or systems.