UPD78F0537DGA(T)-9EV-A NEC, UPD78F0537DGA(T)-9EV-A Datasheet - Page 17

• Manufacturer Part Number: UPD78F0537DGA(T)-9EV-A
• Description: 8BIT MCU, 128K FLASH, 7KB RAM, SMD
• Manufacturer: NEC

Specifications of UPD78F0537DGA(T)-9EV-A

• Controller Family/series: UPD78
• No. Of I/o's: 55
• Ram Memory Size: 7KB
• Cpu Speed: 20MHz
• No. Of Timers: 8
• No. Of Pwm: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 128KB
• Oscillator Type: External, Internal

1.1 Features
Note The
Minimum instruction execution time can be changed from high speed (0.1
speed system clock) to ultra low-speed (122
General-purpose register: 8 bits × 32 registers (8 bits × 8 registers × 4 banks)
ROM, RAM capacities
Note The internal flash memory, internal high-speed RAM capacities, and internal expansion RAM capacities
On-chip single-power-supply flash memory
Self-programming (with boot swap function)
On-chip debug function (
On-chip power-on-clear (POC) circuit and low-voltage detector (LVI)
On-chip watchdog timer (operable with the on-chip internal low-speed oscillation clock)
On-chip multiplier/divider (16 bits × 16 bits, 32 bits / 16 bits)
(
On-chip key interrupt function
On-chip clock output/buzzer output controller
I/O ports: 55 (N-ch open drain: 4)
µ
Part Number
µ
µ
µ
µ
µ
µ
µ
PD78F0534, 78F0535, 78F0536, 78F0537, 78F0537D only)
PD78F0531
PD78F0532
PD78F0533
PD78F0534
PD78F0535
PD78F0536
PD78F0537, 78F0537D
reliability cannot be guaranteed after the on-chip debug function has been used, from the viewpoint of the
restriction on the number of times the flash memory can be rewritten. NEC Electronics does not accept any
complaint about this product.
can be changed using the internal memory size switching register (IMS) and the internal expansion RAM
size switching register (IXS). For IMS and IXS, see 26.1 Memory Size Switching Register and 26.2
Internal Expansion RAM Size Switching Register.
µ
PD78F0537D has an on-chip debug function. Do not use this product for mass production because its
Item
µ
PD78F0537D only)
Flash memory
Program Memory
CHAPTER 1 OUTLINE
(ROM)
User’s Manual U17260EJ6V0UD
Note
µ
Note
s: @ 32.768 kHz operation with subsystem clock)
16 KB
24 KB
32 KB
48 KB
60 KB
96 KB
128 KB
768 bytes
Internal High-Speed RAM
1 KB
µ
s: @ 20 MHz operation with high-
Data Memory
Note
1 KB
2 KB
4 KB
6 KB
Internal Expansion RAM
−
Note
17