8-bit Microcontroller. AT87C5103 Datasheet

AT87C5103 Microcontroller. Datasheet pdf. Equivalent

AT87C5103 Datasheet
Recommendation AT87C5103 Datasheet
Part AT87C5103
Description Low-pin Count 8-bit Microcontroller
Feature AT87C5103; Features • 80C51 Compatible CPU Core High-speed Architecture • X2 Speed Improvement Capability (6 Cl.
Manufacture ATMEL
Datasheet
Download AT87C5103 Datasheet




ATMEL AT87C5103
Features
80C51 Compatible CPU Core High-speed Architecture
X2 Speed Improvement Capability (6 Clocks/Machine Cycle)
16 MHz in Standard or X2 mode
256 Bytes RAM
256 Bytes XRAM
12K Bytes ROM/OTP Program Memory
Two 16-bit Timer/Counters T0, T1
5 Channels Programmable Counter Array with High-speed Output, Compare/Capture,
Pulse Width Modulation and Watchdog Timer Capabilities
SPI Interface (Master and Slave mode)
Interrupt Structure with:
– 6 Interrupt Sources
– 4 Interrupt Priority Levels
Power Supply: 3 - 5.5V
Temperature Range: Industrial (-40oC to 85oC), Automotive (-40oC to 125oC)
Package: SSOP16, SSOP24
Description
The AT8xC5103 is a high-performance ROM/OTP version of the 80C51 8-bit Micro-
controller in 16 and 24-pin packages.
The AT8xC5103 contains a standard C51 CPU core with 12 Kbytes ROM/OTP pro-
gram memory, 256 bytes of internal RAM, 256 bytes of extended internal RAM, a 5-
sources 4-level interrupt system, two timer/counters and a SPI serial bus controller.
The AT8xC5103 is also dedicated for analog interfacing applications. For this, it has a
five channels Programmable Counter Array.
In addition, the AT8xC5103 implements the X2 speed improvement mechanism. The
X2 feature allows to keep the same CPU power at a divided by two oscillator
frequency.
The fully static design of the AT8xC5103 allows to reduce system power consumption
by bringing the clock frequency down to any value, even DC, without loss of data.
Low-pin Count
8-bit
Microcontroller
AT87C5103
AT83C5103
Rev. 4134D–8051–02/08
1



ATMEL AT87C5103
Block Diagram
XTAL1
XTAL2
Xtal
Osc
EXRAM RAM
ROM
256x8 256x8
12 K *8
CPU
C51
CORE
IB-bus
(1)(1) (1)(1)(3)(1)
PCA
SPI
Timer 0 INT
Timer 1 Ctrl
(3) (3) (3) (3)
Parallel I/O Ports
Port 1Port 3 Port 4
Notes: 1. Alternate function of Port 1.
2. Alternate function of Port 3.
2
4134D–8051–02/08



ATMEL AT87C5103
Pin Configurations
P3.2/DIG0/INT0
P3.4/DIG1/T0
P3.6/SPICK
VSS
VCC
RST/VPP
XTAL2
XTAL1
1
2
3
4
5
6
7
8
SSOP16
16
15
14
13
12
11
10
9
P1.7/CEX4/SS
P1.6/CEX3
P1.5/CEX2
P1.4/CEX1
P1.3/CEX0
P1.2/ECI/DIG2
P1.1/MOSI
P1.0/MISO
P3.2/DIG0/INT0 1
P3.3/INT1 2
P3.4/DIG1/T0 3
P3.5/T1 4
P3.6/SPICK 5
VSS 6
VCC 7
RST/VPP 8
XTAL2 9
XTAL1 10
P4.0 11
P4.1 12
SSOP24
24 P3.1
23 P3.0
22 P1.7/CEX4/SS
21 P1.6/CEX3
20 P1.5/CEX2
19 P1.4/CEX1
18 P3.7
17 P1.3/CEX0
16 P1.2/ECI/DIG2
15 P4.2
14 P1.1/MOSI
13 P1.0/MISO
4134D–8051–02/08
3







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