UPD75P238 datasheet(29/50 Pages) NEC

Part #	UPD75P238

Description	4-BIT SINGLE CHIP MICROCOMPUTER

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Manufacturer	NEC [NEC]

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

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29

µPD75P238

DC CHARACTERISTICS (Ta = –40 to +70

°C, VDD = 2.7 to 6.0 V) (2/3)

Output leakage

current high

Output leakage

current low

Display output

current

On-chip pull-up

resistor

Power supply

current*1

VOUT = VDD

3

µA

VDD = 4.5 to 6.0 V

VOD = VDD – 2 V

Display

output

Operat-

ing

mode

HALT

mode

Operat-

ing

mode

HALT

mode

ILOH1

ILOL2

IOD

ILOL1

RL

RV1

IDDI

IDD2

IDDI

IDD2

PARAMETER

SYMBOL

TEST CONDITIONS

MIN.

TYP.

MAX.

UNIT

All ports and

pins except

those listed

below.

ILOH2

Port 4, 5

VOUT = 10 V

20

µA

All ports and

pins except

those listed

below.

Display

VOUT = VLOAD =

–10

µA

output

VDD – 35 V

S0 to S9,

–3

–5.5

mA

S16 to S23

T0 to T15

–15

–22

mA

On-chip pull-down

resistor

VOD – VLOAD = 35 V

25

50

135

k

Ω

(Mask option)

Port 0, 1, 2, 3,

VDD = 5 V

± 10%

15

40

80

k

Ω

6 (Except P00)

VIN = 0 V

VDD = 3 V

± 10%

30

300

k

Ω

VDD = 5V

918

mA

±10%*2

VDD = 3 V

13

mA

±10%*3

VDD = 5 V

900

2700

µA

±10%

VDD = 3 V

300

900

µA

±10%

VDD = 5 V

515

mA

±10%*2

VDD = 3 V

0.9

2.7

mA

±10%*3

VDD = 5 V

600

1800

µA

±10%

VDD = 3 V

200

600

µA

±10%

*1.

Current to the on-chip pull-down resistor (pull-up) and power-on reset circuit (mask option) is not included.

2.

When the processor clock control register (PCC) is set to 0011 and is operated at high-speed mode.

3.

When the PCC register is set to 0000 and is operated in the low-speed mode.

4.

Includes the case where the subsystem clock oscillating.

VOUT = 0 V

–3

µA

6MHz crystal

oscillation

C1 = C2 =

22 pF*4

4.19MHz

crystal

oscillation

C1 = C2 =

22 pF*4

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