AT89C51CC03
Power Fail Detect at Ambiant
Temperatures
VPFDP(1)
VPFDM(2)
2.5V typ
2.35V typ
Note: 1. Threshold Voltage for PFD Release
2. Threshold Voltage for PFD Activation
Figure 78. ICC Test Condition, Active Mode
VCC
ICC
VCC
VCC
P0
VCC
RST EA
(NC)
CLOCK
SIGNAL
XTAL2
XTAL1
VSS
Hysterisis
100mV min.
All other pins are disconnected.
Figure 79. ICC Test Condition, Idle Mode
VCC
ICC
VCC
VCC
P0
RST EA
(NC)
CLOCK
SIGNAL
XTAL2
XTAL1
VSS
All other pins are disconnected.
Figure 80. ICC Test Condition, Power-Down Mode
VCC
ICC
VCC
VCC
P0
RST EA
(NC)
XTAL2
XTAL1
VSS
All other pins are disconnected.
4182K–CAN–05/06
171