UPD750004A datasheet(3/84 Pages) NEC

3 / 84 page

µPD750004, 750006, 750008, 750004(A), 750006(A), 750008(A)

ROM

RAM

FUNCTIONS

CMOS input

CMOS I/O

N-ch open

drain I/O

Total

Can incorporate 7 pull-up resistors that are specified with the software.

Can directly drive the LED.

Can incorporate 18 pull-up resistors that are specified with the software.

Can directly drive the LED.

Can withstand 13 V.

Can incorporate pull-up resistors that are specified with the mask option.

Serial interface

Clock output (PCL)

Buzzer output (BUZ)

Vectored interrupt

Test input

System clock oscillator

Standby

Operating ambient

temperature range

Supply voltage

Package

Item

Command execution

time

Internal memory

General-purpose

I/O port

Timer

Bit sequential buffer (BSB)

4 channels

• 8-bit timer/event counter: 1 channel

• 8-bit timer counter: 1 channel

• Basic interval timer/watchdog timer: 1 channel

• lock timer: 1 channel

• Three-wire serial I/O mode ... switchable between the start LSB and the start MSB

• Two-wire serial I/O mode

• SBI mode

16 bits

•

Φ, 524 kHz, 262 kHz, 65.5 kHz (when the main system clock operates at 4.19 MHz)

•

Φ, 750 kHz, 375 kHz, 93.8 kHz (when the main system clock operates at 6.0 MHz)

• 2 kHz, 4 kHz, 32 kHz (when the main system clock operates at 4.19 MHz or when the

subsystem clock operates at 32.768 kHz)

• 2.93 kHz, 5.86 kHz, 46.9 kHz (when the main system clock operates at 6.0 MHz)

External :

Internal :

External :

Internal :

• Ceramic or crystal oscillator for main system clock

• Crystal oscillator for subsystem clock

STOP/HALT mode

TA = -40 to +85

°C

VDD = 2.2 to 5.5 V

42-pin plastic shrink DIP (600 mil, 1.778 mm pitch)

44-pin plastic QFP (10

× 10 mm, 0.8 mm pitch)

Function

• 0.95, 1.91, 3.81, 15.3

µs (when the main system clock operates at 4.19 MHz)

• 0.67, 1.33, 2.67, 10.7

µs (when the main system clock operates at 6.0 MHz)

• 122

µs (when the subsystem clock operates at 32.768 kHz)

4096

× 8 bits (

µPD750004)

6144

× 8 bits (

µPD750006)

8192

× 8 bits (

µPD750008)

512

× 4 bits

• When operating in 4 bits: 8

× 4 banks

• When operating in 8 bits: 4

× 4 banks

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