The UPD79F7023/7024 are OPA: 2ch, CMP: 1ch and 20pin SSOP products.
These products are most suitable for smoke sensor, fire detector and accessory household appliances.
Pin Count / Memory Size Lineup
Block Diagram
Key Features
- 78K0 CPU core
- I/O ports,ROM and RAM capacities
Products/Item | I/O ports | Program Memory (Flash Memory) |
Data Memory (Internal High-Speed RAM) |
---|---|---|---|
μPD79F7023 | 16(CMOS I/O:13,CMOS input :3) | 8 KB | 512 bytes |
μPD79F7024 | 16 KB | 768 bytes |
- Low power consumption
- Internal high-speed oscillation mode: 140 μA (TYP.) (at fCPU = 1 MHz operation)
- STOP mode : 2.0 μA(TYP.)(at VDD = 5.0 V)
- Clock
- High-speed system clock...Selected from the following three sources
- Ceramic/crystal oscillator : 1 to 10MHz
- External clock : 1 to 10MHz
- Internal high-speed oscillator: 4MHz ± 3 %(TA = −40 to+85°C),4 MHz ± 2 %(TA = −20 to+70 °C)
- High-speed system clock...Selected from the following three sources
- Low-speed system oscillator 240kHz ± 10 % ...Watchdog timer, time clock in intermittent operation
- Power-on-clear (POC) circuit
- Low-voltage detector (LVI) (An interrupt/reset (selectable) is generated when the detection voltage is reached))
- Detection voltage: Selectable from eleven levels between 2.7 and 4.24 V
- Single-power-supply flash memory
- Flash self programming enabled
- Software protection function: Protected from outside party copying (no flash reading command)
- Safety function
- Watchdog timer operated by clock independent from CPU...A hang-up can be detected even if the system clock stops
- Supply voltage drop detectable by LVI...Appropriate processing can be executed before the supply voltage drops below the operation voltage
- Equipped with option byte function...Important system operation settings set in hardware
- Timer
- 16 bit timer/event counter...PPG output, capture input, external event counter input
- 8 bit timer H …PWM output, operable with low-speed internal oscillation clock
- 8 bit timer/event counter 5 …External event counter input
- Watchdog timer …Operable with low-speed internal oscillation clock
Product/Item | 16 bit timer/Event counter | 8 bit timer | Watchdog timer |
---|---|---|---|
μPD79F7023 | 1 ch | Timer H:1 ch | 1 ch |
μPD79F7024 | Timer 5:1 ch |
- Serial interface
- UART... Asynchronous 2-wire serial interface
Product/Item | UART |
---|---|
μPD79F7023 | 1 ch |
μPD79F7024 |
- 8 bit resolution A/D conversion: 5 ch
- Operational amplifier: 2 ch
- Compiler: 1 ch
- On-chip debug function …Available to control for the target device, and to reference memory
- Assembler and C language supported
- Development tools...Support for simplified emulator (MINICUBE2)
- Power supply voltage: VDD = 2.7 to 5.5 V
- Operating ambient temperature:TA =–40 to +85°C
Outline of Functions
Item | μPD79F7023 | μPD79F7024 | ||
---|---|---|---|---|
Internal Memory | Flash memory (self-programming supported) |
8 KB | 16 KB | |
High-speed RAM | 512 bytes | 768 bytes | ||
Memory space | 64 KB | |||
Clock |
Main | High-speed system (crystal/ceramic oscillation, external clock input) |
1 to 10 MHz:VDD = 2.7 to 5.5 V | |
Internal high-speed oscillation | 4 MHz ± 3% (TA = −40 to+85 °C), 4 MHz ± 2 % (TA = −20 to+70 °C) | |||
Iternal low-speed oscillation | 240 kHz ± 10% | |||
General-purpose registers | 8 bits × 32 registers (8 bits × 8 registers × 4 banks) | |||
Instruction set | 8-bit operation, 16-bit operation Multiply/divide (8 bits × 8 bits, 16 bits ÷ 8 bits) Bit manipulate (set, reset, test, and Boolean operation) BCD adjust, etc. |
|||
I/O ports (total) | 16 | |||
CMOS I/O | 15 | |||
CMOS input | 1 | |||
Timer |
16 bits (TMO) | 1 ch(PPG output:1,capture input:2) | ||
8 bits (TM5) | 1 ch | |||
8 bits (TMH) | 1 ch(PWM output:1) | |||
Watchdog (WDT) | 1 ch | |||
Serial interface | UART | 1 ch | ||
8-bit A/D converter AVREF = 2.7 to 5.5 V |
5 ch | |||
Operational amplifier (Products with operational amplifier) |
2 ch (VDD = 2.2 to 5.5 V) | |||
Comparator | 1 ch | |||
Vectored interrupt Internal sources | External | 3 | ||
Internal | 8 | |||
Reset | Reset using RESET pin Internal reset by watchdog timer Internal reset by power-on-clear Internal reset by low-voltage detector |
|||
On-chip debug function | Provided |
|||
Power supply voltage | VDD = 2.7 to 5.5 V | |||
Operating ambient temperature | TA = –40 to +85°C | |||
Package |
20-pin plastic SSOP (7.62 mm (300)) |
Key Applications
Smoke, fire detector, accessory household appliance.
Product Lineup
Document | Part No | Program Memory (KB) |
RAM (B) |
Operating Voltage Min (V) |
Package Code | Production |
Packing /Lead Free | Order Part No |
---|---|---|---|---|---|---|---|---|
UPD79F07023MC-CAA-AX | 8 | 512 | 2.7 | PLSP0020JC-B 20-pin plastic SSOP(6.1x6.5) |
Mass production |
Tray/Lead free (Ni/Pd/Au) |
UPD79F7023MC-CAA-AX | |
UPD79F7024MC-CAA-AX | 16 | 768 | UPD79F7024MC-CAA-AX |
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