UPD753204 datasheet(2/80 Pages) NEC

Part #	UPD753204

Description	4-BIT SINGLE-CHIP MICROCONTROLLERS

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Manufacturer	NEC [NEC]

Direct Link	http://www.nec.com/

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µPD753204, 753206, 753208

Function Outline

Parameter

Function

Instruction execution time

• 0.95, 1.91, 3.81, 15.3

µs (@ 4.19-MHz operation with system clock)

• 0.67, 1.33, 2.67, 10.7

µs (@ 6.0-MHz operation with system clock)

Internal memory

ROM

4096

× 8 bits (

µPD753204)

6144

× 8 bits (

µPD753206)

8192

× 8 bits (

µPD753208)

RAM

512

× 4 bits

General-purpose register

• 4-bit operation: 8

× 4 banks

• 8-bit operation: 4

× 4 banks

Input/

CMOS input

6

Connecting on-chip pull-up resistors can be specified by software: 5

output

CMOS input/output

20

Connecting on-chip pull-up resistors can be specified by software: 20

port

Also used for segment pins: 8

N-ch open-drain

4

On-chip pull-up resistors can be specified by mask option

input/output

13-V withstand voltage

Total

30

LCD controller/driver

• Segment selection:

4/8/12 segments (can be changed to CMOS input/

output port in 4-time units; 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 mask option

Timer

5 channels

• 8-bit timer/event counter: 1 channel

• 8-bit timer counter: 2 channels (can be used as the 16-bit timer counter, carrier

generator, and 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 first bit

• 2-wire serial I/O mode

• SBI mode

Bit sequential buffer (BSB)

16 bits

Clock output (PCL)

•

Φ, 524, 262, 65.5 kHz (@ 4.19-MHz operation with system clock)

•

Φ, 750, 375, 93.8 kHz (@ 6.0-MHz operation with system clock)

Buzzer output (BUZ)

• 2, 4, 32 kHz (@ 4.19-MHz operation with system clock)

• 2.93, 5.86, 46.9 kHz (@ 6.0-MHz with system clock)

Vectored interrupts

External: 2, Internal: 5

Test input

External: 1, Internal: 1

System clock oscillator

Ceramic or crystal oscillator for system clock oscillation

Standby function

STOP/HALT mode

Power supply voltage

VDD = 1.8 to 5.5 V

Package

48-pin plastic shrink SOP (375 mils, 0.65-mm pitch)

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