CY7B923
CY7B933
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Static Discharge Voltage...........................................> 4001V
(per MIL-STD-883, Method 3015)
Storage Temperature ..................................–65°C to +150°C
Latch-up Current.....................................................> 200 mA
Ambient Temperature with
Power Applied.............................................–55°C to +125°C
Operating Range
Ambient
Supply Voltage to Ground Potential...............–0.5V to +7.0V
DC Input Voltage............................................–0.5V to +7.0V
Output Current into TTL Outputs (LOW)......................30 mA
Output Current into PECL Outputs (HIGH)................–50 mA
Range
Commercial
Industrial
Temperature
0°C to +70°C
–40°C to +85°C
VCC
5V ± 10%
5V ± 10%
CY7B923/CY7B933 Electrical Characteristics Over the Operating Range[7]
Parameter
Description
Test Conditions
Min.
2.4
Max.
Unit
TTL OUTs, CY7B923: RP; CY7B933: Q0−7, SC/D, RVS, RDY, CKR, SO
VOHT
VOLT
IOST
Output HIGH Voltage
Output LOW Voltage
IOH = - 2 mA
IOL = 4 mA
VOUT = 0V[8]
V
V
0.45
–90
Output Short Circuit Current
–15
mA
TTL INs, CY7B923: D0−7, SC/D, SVS, ENA, ENN, CKW, FOTO, BISTEN; CY7B933: RF, REFCLK, BISTEN
VIHT
Input HIGH Voltage
Com’l, Ind’l, and Mil
2.0
2.2
VCC
VCC
V
V
Ind’l and Mil (CKW and
FOTO, only)
VILT
IIHT
IILT
Input LOW Voltage
Input HIGH Current
Input LOW Current
–0.5
–10
0.8
+10
V
VIN = VCC
VIN = 0.0V
µA
µA
–500
Transmitter PECL-Compatible Output Pins: OUTA+, OUTA−, OUTB+, OUTB−, OUTC+, OUTC−
VOHE
VOLE
VODIF
Output HIGH Voltage
(VCC referenced)
Load = 50Ω to Com’l
CC – 2V
VCC – 1.03
VCC – 1.05
VCC – 1.86
VCC – 1.96
0.6
VCC – 0.83
VCC – 0.83
VCC – 1.62
VCC – 1.62
V
V
V
V
V
V
Ind’l and Mil
Output LOW Voltage
(VCC referenced)
Load = 50Ω to Com’l
CC – 2V
V
Ind’l and Mil
Load = 50Ω to VCC – 2V
Output Differential Voltage
|(OUT+) − (OUT−)|
Receiver PECL-Compatible Input Pins: A/B, SI, INB
VIHE
Input HIGH Voltage
Input LOW Voltage
Com’l
VCC – 1.165
VCC – 1.14
2.0
VCC
VCC
V
V
Ind’l and Mil
Com’l
VILE
VCC – 1.475
VCC – 1.50
+500
V
Ind’l and Mil
2.0
V
[9]
IIHE
Input HIGH Current
Input LOW Current
VIN = VIHE Max.
VIN = VILE Min.
µA
µA
[9]
IILE
+0.5
50
Differential Line Receiver Input Pins: INA+, INA−, INB+, INB−
VDIFF
Input Differential Voltage
mV
|(IN+) – (IN−)|
VIHH
VILL
IIHH
Highest Input HIGH Voltage
Lowest Input LOW Voltage
Input HIGH Current
VCC
750
V
V
2.0
VIN = VIHH Max.
VIN = VILL Min.
µA
µA
[10]
IILL
Input LOW Current
–200
Notes:
7. See the last page of this specification for Group A subgroup testing information.
8. Tested one output at a time, output shorted for less than one second, less than 10% duty cycle.
9. Applies to A/B only.
10. Input currents are always positive at all voltages above V /2.
CC
Document #: 38-02017 Rev. *E
Page 26 of 33
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