DESCRIPTION
VDD 1 RESET 2 WKP 3 PA7 4 PA6 5 PA5 6 PA4 7 PA3 8 PA2 9 PA1 10 PC0 11 PA0 12 PB0 13 PB1 14 28 OSCin 27 OSCout 26 PC1/OP (1) 25 PC6 24 PC7 23 VSS 22 TEST 21 PC5 20 PB7 19 PB6 18 PB5 17 PB4 16 PB3 15 PB2 No tes: 1. PC1 on ST7291L2/L3/L4; software selectable as OP on ST7291L6/L5/L5A December 1997 1/5 This is preliminary information ona new product in development orundergoing evaluation. Details are subject to change without notice. 1 ST7291L 1 GENERAL DESCRIPTION
1.1 INTRODUCTION Oscillator frequency may be as high as 8MHz, however, thanks to the fully static design, operation is possible down to DC. Figure 2. ST7291L Block Diagram The enhanced instruction set and addressing modes afford real programming potential. In addition to standard 8-bit data management, the ST7291L features bit manipulation, 8x8 unsigned multiplication and indirect addressing modes. The device includes a CPU, ROM, RAM, I/O, an on-chip oscillator, a timer with output compare system and, depending on the version, a Low Voltage Detection (LVD) and Carrier Frequency generation for remote control applications.
STMicroelectronics
