AT7911E
11.2 DC Electrical Characteristics
The AT7911E can work with VCC = + 5 V 0.5 V and VCC = + 3.3V 0.3V. Although specified
for TTL outputs, all AT7911E outputs are CMOS compatible and will drive to VCC and GND
assuming no DC loads.
Table 11-2. 5V operating range DC Characteristics.
Parameter
Operating Voltage
Symbol
VCC
VIH
Min.
4.5
Max.
5.5
Unit
Conditions
V
Input HIGH Voltage
2.2
V
V
V
V
Input LOW Voltage
VIL
0.8
0.4
Output HIGH Voltage
Output LOW Voltage
Output Short circuit current
VOH
VOL
IOS
2.4
IOL = 3, 6, 12mA / VCC = VCC(min)
IOH = 3, 6, 12mA / VCC = VCC(min)
90(1)
180(2)
270(3)
mA
mA
mA
VOUT = VCC
VOUT = GND
Notes: 1. Applicable for HDATA[31:0], HACK, HINTR*, CMDATA[31:0], COCI, CPUR*, SES[3:0]* and
TDO pins
2. Applicable for CMCS[1:0]*, CMRD*, CMWR* and CMADR[31:0] pins
3. Applicable for LDO1, LSO1, LDO2, LSO2, LDO3 and LSO3 pins
Table 11-3. 3.3V operating range DC Characteristics.
Parameter
Operating Voltage
Symbol
VCC
VIH
Min.
3.0
Max.
3.6
Unit
Conditions
V
Input HIGH Voltage
2.0
V
V
V
V
Input LOW Voltage
VIL
0.8
0.4
Output HIGH Voltage
Output LOW Voltage
Output Short circuit current
VOH
VOL
IOS
2.4
IOL = 1.5, 3, 6mA / VCC = VCC(min)
IOH = 1, 2, 4mA / VCC = VCC(min)
50(1)
100(2)
155(3)
mA
mA
mA
VOUT = VCC
VOUT = GND
Notes: 1. Applicable for HDATA[31:0], HACK, HINTR*, CMDATA[31:0], COCI, CPUR*, SES[3:0]* and
TDO pins
2. Applicable for CMCS[1:0]*, CMRD*, CMWR* and CMADR[31:0] pins
3. Applicable for LDO1, LSO1, LDO2, LSO2, LDO3 and LSO3 pins
17
7737B–AERO–05/08
ATMEL [ ATMEL ]
