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Semiconductor Group 2 - 1

2 Fundamental Structure

The SAB

80C517A/83C517A-5 is a high-end member of the Siemens SAB 8051 family of

microcontrollers. It is designed in Siemens ACMOS technology and based on the SAB 8051

architecture. ACMOS is a technology which combines high-speed and density characteristics with

low-power consumption or dissipation.

While maintaining all the SAB 80C517 features and operating characteristics the SAB 80C517A is

expanded in its "fail-safe" characteristics

and timer capabilities.

Furthermore, the SAB 80C517A additionally contains 2 kByte of on-chip RAM (called XRAM), a

10bit A/D converter with 12 multiplexed inputs, enhanced Baud Rate Generators and the

capabilities of the Compare Capture Unit are improved.

The

SAB 80C517A is identical with the SAB 83C517A-5 except that it lacks the on-chip program

memory.

The SAB 80C517A / 83C517A-5 is supplied in a 84-pin plastic leaded chip carrier package

(P-LCC-84) and in a 100-pin plastic metric rectangular flat package (P-MRFP-100).

The essential enhancements to the SAB 80C517 are:

– Additional 2KByte RAM on chip.

– 32 kByte on-chip program memory (SAB 83C517A-5 only)

– 12-channel 10-bit A/D Converter

– Additional Compare Mode for Concurrent Compare function at Port 5; up to eight pins on P5

can be either set or reset on a compare match in two additional compare registers.

– Dedicated interrupt vector for the 16-bit compare registers CM0-CM7: Interrupt requested on

a compare match in one of the eight compare channels (eight request flags are available)

– New baud rate generator for Serial Channel 0

– Expanded baud rate range for Serial Channel 1

– Hardware controlled Power Down Mode

– Improved functionality of the Oscillator Watchdog

– High speed operation of the device (up to 18 MHz crystal frequency)

Figure 2-1 shows a block diagram of the SAB 80C517A

Fundamental Structure

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Siemens EF 88H Series Bedienungsanleitung Seite 7