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T89C51RC2-3CSIM Datasheet(PDF) 91 Page - ATMEL Corporation

Part # T89C51RC2-3CSIM
Description  8-bit Microcontroller with 16K/ 32K Bytes Flash
PDF  117 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T89C51RC2-3CSIM Datasheet(HTML) 91 Page - ATMEL Corporation

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T89C51RB2/RC2
4105D–8051–10/06
Flash EEPROM Programming
and Verification Waveforms
Figure 41. Flash EEPROM Programming and Verification Waveforms
External Clock Drive
Characteristics (XTAL1)
Table 69. External Clock Drive Characteristics (XTAL1)
External Clock Drive
Waveforms
Figure 42. External Clock Drive Waveforms
AC Testing Input/Output
Waveforms
Figure 43. AC Testing Input/Output Waveforms
AC inputs during testing are driven at VCC - 0.5 for a logic “1” and 0.45V for a logic “0”.
Timing measurement are made at VIH min. for a logic “1” and VIL max for a logic “0”.
T
EHAZ
ALE/PROG
T
AVGL
TDVGL
P0
P1.0-P1.7
P2.0-P2.4
P3.4-P3.5
CONTROL
SIGNALS
(ENABLE)
ADDRESS
DATA IN
T
GHAX
T
GHDX
T
GLGH
ADDRESS
DATA OUT
TAVQV
TELQV
TEHQZ
PROGRAMMING
VERIFICATION
Symbol
Parameter
Min
Max
Units
T
CLCL
Oscillator Period
25
ns
T
CHCX
High Time
3
ns
T
CLCX
Low Time
3
ns
T
CLCH
Rise Time
3
ns
T
CHCL
Fall Time
3
ns
T
CHCX/TCLCX
Cyclic ratio in X2 mode
40
60
%
VCC-0.5V
0.45V
0.7VCC
0.2VCC-0.1
TCHCL
TCLCX
TCLCL
TCLCH
TCHCX
INPUT/OUTPUT
0.2 VCC + 0.9
0.2 V
CC - 0.1
VCC -0.5V
0.45V



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