The EM78F734N is an 8-bit microprocessor designed and developed with low-power, high-speed CMOS technology and high noise immunity. It has an on-chip 4K×13-bit Electrical Flash Memory and 128×8-bit In-system programmable EEPROM. It provides three protection bits to prevent intrusion of user’s Flash memory code.
Features
4Kx13 bits on-chip ROM
144x8 bits on-chip registers (SRAM)
128 bytes In-system programmable EEPROM
8-level stacks for subroutine nesting
Three bidirectional I/O ports
Wake-up port
12 programmable pull-down I/O pins
8 programmable pull-high I/O pins
4 programmable open-drain I/O pins
External interrupt : P60
2.2V~5.5V at -40°C~85°C (commercial)
2.2V~5.5V at 0°C~70°C (industrial)
Operating frequency range (base on 2 clocks):
IRC Drift Rate (Vdd @ 3.3V)
Internal RC Frequency
Drift Rate
Temperature(-10°C+40°C)
Process
Total
455 MHz
±1%
±1%
±2%
1 MHz
±1%
±1%
±2%
4 MHz
±1%
±1%
±2%
8MHz
±1%
±1%
±2%
IRC Drift Rate (Temperature: -10°C+40°C)
Internal RC Frequency
Drift Rate
Voltage(3.0~3.6V)
Process
Total
455 MHz
±1%
±1%
±2%
1 MHz
±1%
±1%
±2%
4 MHz
±1%
±1%
±2%
8MHz
±1%
±1%
±2%
One 16-bit Timer/Counter
TC1 : Timer/Counter/Capture
One 8-bit Timer/Counter
TC3 : Timer/Counter/PDO (Programmable Divider Output) / PWM (Pulse Width Modulation)
Eight available interrupts:
Internal interrupt: 4
External interrupt: 4
Seven channels Analog-to-Digital Converter with 12-bit resolution
Peripheral configuration
8-bit real time clock only (TCC) with selective signal sources, trigger edges, and overflow interrupt
Power down (Sleep) mode
Four programmable Level Voltage Reset (LVR) (LVR) : 3.3V, 3.0V, 2.6V, and 2.0V (POR)
Three security registers to prevent intrusion of Flash memory codes
One configuration register to accommodate user’s requirements
Two clocks per instruction cycle
High EFT immunity
Two sub-frequencies; 128kHz and 16kHz, the 16kHz is provided by dividing the 128kHz
Single instruction cycle commands
Five Crystal Range in Oscillator Mode
Crystal Range
Oscillator Mode
20 MHz ~ 12 MHz
HXT2
12 MHz~6 MHz
HXT1
6 MHz ~ 1 MHz
XT
1 MHz ~ 100kHz
LXT1
Programmable free running Watchdog Timer
16-pin DIP 300mil : EM78F734ND16
16-pin SOP 300mil : EM78F734NSO16
16-pin SOP 150mil : EM78F734NSO16A
16-pin SSOP 150mil: EM78F734NSS16
18-pin DIP 300mil : EM78F734ND18
18-pin SOP 300mil : EM78F734NSO18
20-pin DIP 300 mil: EM78F734ND20
20-pin SOP 300mil : EM78F734NSO20
20-pin SSOP 209mil : EM78F734NSS20
Note: These are Green products which do not contain hazardous substances.芯片手冊下載: EM78F734N芯片手冊
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