| SyncMOS Em-Flash 8051 MCU Feature List | |||||||||||||||
| 北京润金法电子技术有限公司 新茂北方总代理 010-62101668 62103543 | |||||||||||||||
| Standard Flash 8051 | Standard Flash 8051+ | ISP | Standard Flash 8051+ASSP | ||||||||||||
| SM8951A | SM8952A | SM8954A | SM8958A | SM89516A | SM5964 | SM59064L | SM5964 x 3 | SM59164 | SM59264 | SM7908 | SM79108 | SM7964A | SM79164 | ||
| Internal Memory | Flash Size | 4K | 8KB | 16KB | 32KB | 64KB | 64KB | 64KB | 64KB | 64KB | 128KB | 8KB | 8KB | 64KB | 64KB |
| SRAM Size | 128B | 256B | 512B | 1,023B | 1,024B | 1,024B | 1,024B | 1K+256B | 1,024B | 1,024B | 256B | 256B | 1,024B | 4,096B | |
| ISP/Voltage | ISP/5V | ISP/5V | ISP/5V | ISP/5V | ISP/5V | — | — | — | — | ||||||
| I/O (pins) | 32 | 32 | 32/36 | 32/36 | 32/36 | 32/36 | 32/36 | 32/36 | 32/36 | 32/36 | 32/36 | 32/36 | 32/36 | 32/36 | |
| ADC (bits/Ch.) | — | — | — | — | — | — | — | 8 bit * 4 | 8 bit * 4 | — | 8 bit * 4 | 8 bit * 4 | 8 bit * 4 | — | |
| Serial Interfaces | IIC | — | — | — | — | — | — | ● | ● | ● | ● | — | — | — | — |
| UART | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | Full-Duplex | |
| Timers | Timer | 16-bit x 2 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 | 16-bit x 3 |
| PWM | — | — | Spwm﹡5 | Spwm﹡5 | Spwm﹡5 | Spwm﹡5 | Spwm | Spwm﹡5 | SPWM*4+SPWM*8 | SPWM*4 | SPWM*1+SPWM*1 | SPWM*1+SPWM*1 | SPWM*5 | PWM*8 | |
| WDT | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | ● (SFR) | |
| PWR Save | Idle ＆Powr Down | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● | ● |
| PD Wake UP | reset | reset | reset | reset | reset | reset | Interupt | Interupt | Direct LED driwer | Port4(+4bit) | Direct LED driver(Buszzer) | 14 x 4 LCD driver(Buszzer) | Direct LED driver | port 4(+4 bit) | |
| Interupt | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 6 | 40 MHz | 40 MHz | 25/40 MHz | 25/40 MHz | 25/40 MHz | 16/25/35 MHz | |
| Other Feature | Low WMI(inhibit) | Low EMI(inhibit) | Port 4(+4 bit) | Port 4(+4 bit) | Port 4(+4 bit) | Port 4(+4 bit) | Port 4(+4 bit) | 4T Dual 16bit DPTR | 5 V | 5 V | 3.3/5 V | 3.3/5 V | 3.3/5 V | 2.7/3.3/5 V | |
| Speed Msx.(MHz) | 25/40 MHz | 25/40 MHz | 25/40 MHz | 25/40 MHz | 25/40 MHz | 40 MHz | 25 MHz | 40 MHz | |||||||
| Supply Voltage | 3.3/5 V | 3.3/5 V | 3.3/5 V | 3.3/5 V | 3.3/5 V | 5 V | 3.3 V | 5 V | |||||||
| Operating Temp | |||||||||||||||
| Package form | 40L PDIP/44L PLCC/44L QFP | 40L PDIP/44L PLCC/44L QFP | 40L PDIP/44L PLCC/44L QFP | 44L PLCC / 44L QFP | |||||||||||
| Avaibility | Now | Now | Now | Now | Now | Now | Q1'04 | Q2'04 | Q2'04 | Now | Q1'04 | Q1'04 | Q1'04 | Now | |