UPD753012 datasheet(2/80 Pages) NEC

2 / 80 page

µPD753012, 753016, 753017

FUNCTIONAL OUTLINE

Parameter

Function

Instruction execution time

• 0.95, 1.91, 3.81, 15.3

µs (main system clock: at 4.19 MHz operation)

• 0.67, 1.33, 2.67, 10.7

µs (main system clock: at 6.0 MHz operation)

• 122

µs (subsystem clock: at 32.768 kHz operation)

On-chip memory

ROM

12288

× 8 bits (

µPD753012)

16384

× 8 bits (

µPD753016)

24576

× 8 bits (

µPD753017)

RAM

1024

× 4 bits

General-purpose register

• 4-bit operation: 8

× 4 banks

• 8-bit operation: 4

× 4 banks

Input/

CMOS input

On-chip pull-up resistors can be specified by using software: 23

output

CMOS input/output

port

CMOS output

Also used for segment pins

N-ch open-drain

Withstands 13 V, on-chip pull-up resistors can be specified by using mask

input/output

option

Total

LCD controller/driver

• Segment number selection

: 24/28/32 segments (can be changed to CMOS

output port in 4 time-unit; max. 8)

• Display mode selection

: Static

1/2 duty (1/2 bias)

1/3 duty (1/2 bias)

1/3 duty (1/3 bias)

1/4 duty (1/3 bias)

On-chip split resistor for LCD drive can be specified by using mask option

Timer

5 channels

• 8-bit timer/event counter: 3 channels (can be used for 16-bit timer/event counter,

carrier generator, or timer with gate)

• Basic interval timer/watchdog timer: 1 channel

• Watch timer: 1 channel

Serial interface

• 3-wire serial I/O mode ... MSB or LSB can be selected for transferring top bit

• 2-wire serial I/O mode

• SBI mode

Bit sequential buffer

16 bits

Clock output (PCL)

•

Φ, 524, 262, 65.5 kHz (main system clock: at 4.19 MHz operation)

•

Φ, 750, 375, 93.8 kHz (main system clock: at 6.0 MHz operation)

Buzzer output (BUZ)

• 2, 4, 32 kHz

(main system clock: at 4.19 MHz operation

or subsystem clock: at 32.768 kHz operation)

• 2.93, 5.86, 46.9 kHz (main system clock: at 6.0 MHz operation)

Vectored interrupts

External: 3, Internal: 5

Test input

External: 1, Internal: 1

System clock oscillator

• Ceramic or crystal oscillator for main system clock oscillation

• Crystal oscillator for subsystem clock oscillation

Standby function

STOP/HALT mode

Power supply voltage

VDD = 2.2 to 5.5 V

Package

• 80-pin plastic QFP (14

× 14 mm)

• 80-pin plastic TQFP (fine pitch) (12

× 12 mm)

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