September 2002

Specifications subject to change without notice,contact your sales representatives for the most recent information.

7/17

Ver 1.0

PID 8951A/8952A 09/02

SyncMOS Technologies Inc.

SM8951A/8952A

Operating Conditions

Symbol

Description

Min.

Typ.

Max.

Unit.

Remarks

TA

Operating temperature

0

25

70

Ambient temperature under bias

TS

Storage temperature

-55

25

155

VCC5

Supply voltage

4.5

5.0

5.5

V

For C Version

VCC3

Supply voltage

3

3.3

3.6

V

For L Version

Fosc 16

Oscillator Frequency

3.0

16

16

MHz For 5V, 3.3V application

Fosc 25

Oscillator Frequency

3.0

25

25

MHz For 5V, 3.3V application

Fosc 40

Oscillator Frequency

3.0

40

40

MHz For 5V application

Symbol

Parameter

Valid

VIL1

Input Low Voltage

port 0,1,2,3,4,#EA

VIL2

Input Low Voltage

RES, XTAL1

VIH1

Input High Voltage

port 0,1,2,3,4,#EA

VIH2

Input High Voltage

RES, XTAL1

VOL1

Output Low Voltage

port 0, ALE, #PSEN

VOL2

Output Low Voltage

port 1,2,3,4

VOH1

Output High Voltage

port 0

VOH2

Output High Voltage

port 1,2,3,4,ALE,#PSEN

IIL

Logical 0 Input Current

port 1,2,3,4

ITL

Logical Transition Current

port 1,2,3,4

ILI

Input Leakage Current

port 0, #EA

R RES

Reset Pulldown Resistance

RES

C IO

Pin Capacitance

I CC

Power Supply Current

Vdd

DC Characteristics

(12MHz, typical operating conditions, valid for SM8951A/8952A series)

+

Min.

Max.

Unit

Test Conditions

-0.5

0

2.0

70%Vcc

2.4

90%Vcc

50

2.4

90%Vcc

0.8

0.8

Vcc+0.5

Vcc+0.5

0.45

0.45

-75

-650

10

300

10

20

6.5

150

V

V

V

V

V

V

V

V

V

V

uA

uA

uA

Kohm

pF

mA

mA

uA

IOL=3.2mA

IOL=1.6mA

IOH=-800uA (only for VCC=5V)

IOH=-80uA

IOH=-60uA (only for VCC=5V)

IOH=-10uA

Vin=0.45V

Vin=2.0V

0.45V<Vin<Vcc

Freq=1MHz, Ta=25 C

Active mode, 12MHz

Idle mode, 12MHz

Power down mode