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| 80C51 Datasheet, PDF (28/38 Pages) NXP Semiconductors – 80C51 8-bit microcontroller family 4K/128 OTP/ROM/ROMless low voltage 2.7V.5.5V, low power, high speed 33 MHz | |||
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Philips Semiconductors
80C51 8-bit microcontroller family
4K/128 OTP/ROM/ROMless, low voltage (2.7Vâ5.5V),
low power, high speed (33 MHz)
Product specification
80C51/87C51/80C31
VCC
RST
(NC)
CLOCK SIGNAL
XTAL2
XTAL1
VSS
VCC
VCC
ICC
VCC
P0
EA
RST
(NC)
CLOCK SIGNAL
XTAL2
XTAL1
VSS
VCC
ICC
VCC
VCC
P0
EA
SU00719
Figure 22. ICC Test Condition, Active Mode
All other pins are disconnected
SU00720
Figure 23. ICC Test Condition, Idle Mode
All other pins are disconnected
VCCâ0.5
0.45V
0.7VCC
0.2VCCâ0.1
tCHCL
tCLCX
tCHCX
tCLCH
tCLCL
SU00009
Figure 24. Clock Signal Waveform for ICC Tests in Active and Idle Modes
tCLCH = tCHCL = 5ns
VCC
ICC
RST
VCC
VCC
P0
EA
(NC)
XTAL2
XTAL1
VSS
SU00016
Figure 25. ICC Test Condition, Power Down Mode
All other pins are disconnected. VCC = 2V to 5.5V
2000 Jan 20
28
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