
QS74LCX2H540, 2H541
4QUALITY SEMICONDUCTOR, INC. MDSL-00178-02
FEBRUARY 10, 1998
Now an Company
Table 6. DC Electrical Characteristics Over Operating Range
Industrial Temperature Range, TA = –40°C to 85°C.
Symbol Parameter Test Conditions(1) Min Typ(2) Max Unit
VIH Input HIGH Voltage Logic HIGH for All Inputs 2.0 — — V
VIL Input LOW Voltage Logic LOW for All Inputs — — 0.8 V
VOH Output HIGH Voltage VCC = 2.7V, IOH = –100µA VCC– 0.2 — — V
VCC = 3.0V, IOH = –12mA 2.4 — —
VCC = 3.0V, IOH = –18mA 2.2 — —
VOL Output LOW Voltage VCC = 2.7V, IOL = 100µA — — 0.2 V
VCC = 3.0V, IOL = 12mA — — 0.55
VCC = 3.0V, IOL = 18mA — — 0.8
∆VTInput Hysteresis(3) VTLH – VTHL for All Inputs — 150 — mV
| IOZ | Off-State Output VCC = 3.6V, VO = 0V, — — 1.0 µA
Current (Hi-Z) VO = 5.5V
IOS Short Circuit Current(3,4) VCC = 3.6V, V OUT = G N D –60 — –200 mA
IOR Current Drive(3) VCC = 3.6V, VOUT = 2.0V 40 — — mA
VIK Input Clamp Voltage VCC = 2.7V, IIN = –18mA — –0.7 –1.2 V
IIInput Leakage Current VI = 0V, VI = 5.5V, — — ±1.0 µA
VCC = 3.6V
ROUT Output Resistance VCC = 3.0V, IOL = 12mA — 28 — Ω
| IBH | Input Current VCC = 3.6V, VIN = 0V or — — 50 µA
Input HIGH or LOW VIN = VCC
Bus Hold Inputs(3,5) VCC = 3.6V, 0.8 < VIN < 2.0V — — 500(6) µA
IBHH Bus Hold Sustaining VCC = 3.0V VIN = 2.0V –75 — — µA
Current
IBHL Bus Hold Inputs VIN = 0.8V 75 — — µA
IOFF Power Off Leakage VCC = 0V, VI or VO = 5.5V — — 10 µA
Notes:
1. For conditions shown as Min. or Max. use appropriate value specified under Recommended Operating Conditions
for the applicable device type.
2. Typical values are at VCC = 3.3V and TA = 25°C.
3. These parameters are guaranteed by characterization, but not production tested.
4. Not more than one output should be tested at one time. Duration of test should not exceed one second.
5. Pins with Bus Hold are identified in the Pin Description.
6. An external driver must provide at least | IBH | during transition to guarantee that the Bus Hold input will
change state.