93C56 datasheet(3/13 Pages) STMICROELECTRONICS

3 / 13 page

Input Rise and Fall Times

≤ 20ns

Input Pulse Voltages

0.4V to 2.4V

Input Timing Reference Voltages

1V to 2.0V

Output Timing Reference Voltages

0.8V to 2.0V

AC MEASUREMENT CONDITIONS

Note that Output Hi-Z is defined as the point where data

is no longer driven.

AI00815

2.4V

0.4V

2.0V

0.8V

INPUT

OUTPUT

Figure 3. AC Testing Input Output Waveforms

Symbol

Parameter

Test Condition

Min

Max

Unit

CIN

Input Capacitance

VIN =0V

COUT

Output Capacitance

VOUT =0V

Note: 1. Sampled only, not 100% tested.

Table 3. Capacitance (1)

(TA =25

°C, f = 1 MHz )

Symbol

Parameter

Test Condition

Min

Max

Unit

ILI

Input Leakage Current

≤ VIN ≤ VCC

±2.5

µA

ILO

Output Leakage Current

≤ VOUT ≤ VCC,

Q in Hi-Z

±2.5

µA

ICC

Supply Current (TTL Inputs)

S = VIH, f = 1 MHz

Supply Current (CMOS Inputs)

S = VIH, f = 1 MHz

ICC1

Supply Current (Standby)

S= VSS,C = VSS,

ORG = VSS or VCC

µA

VIL

Input Low Voltage (D, C, S)

VCC =5V

± 10%

–0.3

0.8

≤ VCC ≤ 4.5V

–0.3

0.2 VCC

VIH

Input High Voltage (D, C, S)

VCC =5V

± 10%

VCC +1

≤ VCC ≤ 4.5V

0.8 VCC

VCC +1

VOL

Output Low Voltage

IOL = 2.1mA

0.4

IOL =10

µA

0.2

VOH

Output High Voltage

IOH = –400

µA

2.4

IOH = –10

µAVCC – 0.2

Table 4. DC Characteristics

(TA = 0 to 70

°C or –40 to 85°C; VCC = 4.5V to 5.5V or 3V to 5.5V)

3/13

ST93C56/56C, ST93C57C

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