7477 datasheet(203/361 Pages) RENESAS

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1-196

HARDWARE

1.21 Electrical characteristics

7470/7471/7477/7478 GROUP USER’S MANUAL

Table 1.21.11 Electrical characteristics (7477 group)

(VCC = 2.7 V to 5.5 V, VSS = 0 V, Ta = –20

°C to +85 °C(Note), unless otherwise noted)

Symbol

Parameter

Unit

Limits

Max.

Typ.

Min.

VOH

VOL

VT+ – VT–

IIL

IIH

ICC

VRAM

Test conditions

“H” output voltage

P00 to P07, P10 to P17

P40, P41

“L” output voltage

P00 to P07, P10 to P17

P40, P41

Hysteresis P00 to P07

P30 to P33

Hysteresis RESET

Hysteresis P14/RxD

P16/SCLK

“L” input current

P00 to P07, P10 to P17

P30 to P32, P40, P41

“L” input current P33

“L” input current

P20 to P23

“L” input current

XIN, RESET

“H” input current

P00 to P07, P10 to P17

P30 to P32, P40, P41

“H” input current P33

“H” input current

P20 to P23

“H” input current

XIN, RESET

Power source current

RAM retention voltage

When used as RxD or SCLK

VI = 0 V

Not use pull-up transistor

VI = 0 V

Use pull-up transistor

VI = 0V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

Ta = 25

°C

Ta = 85

°C

VCC = 5 V

VCC = 3 V

VCC = 5 V

VCC = 3 V

VI = 0 V,

Not use as analog input

VI = 0 V

XIN is at stop mode

VI = VCC

Not use pull-up transistor

VI = VCC

Not use as analog input

VI = VCC

XIN is at stop mode

VCC = 5 V, IOH = –5 mA

VCC = 3 V, IOH = –1.5 mA

VCC = 5 V, IOL = 10 mA

VCC = 3 V, IOL = 3 mA

3.0

2.0

–0.25

–0.08

2.0

0.5

0.3

0.5

0.3

0.5

0.3

–0.5

–0.18

3.5

1.8

7.5

0.5

0.1

2.0

1.0

–5

–3

–1.0

–0.35

–5

–3

–5

–3

–5

–3

3.6

5.5

f(XIN) = 8 MHz

f(XIN) = 4 MHz

f(XIN) = 8 MHz

f(XIN) = 4 MHz

f(XIN) = 8 MHz

f(XIN) = 4 MHz

At system op-

eration,

A-D conversion

is not executed

At system op-

eration,

A-D conversion

is executed

At stop mode, VCC = 5 V

Stop all oscillation

At wait mode

Note: –40

°C to +85 °C for extended operating temperature version.

µA

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