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T89C51AC2-RLSI-M Datasheet(PDF) 104 Page - ATMEL Corporation

Part # T89C51AC2-RLSI-M
Description  8-bit MCU with 32K bytes Flash, 10 bits A/D and EEPROM
PDF  117 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

T89C51AC2-RLSI-M Datasheet(HTML) 104 Page - ATMEL Corporation

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Draft.A - March 30, 2001
Preview - Confidential
T89C51AC2
4.
Capacitance loading on Ports 0 and 2 may cause spurious noise pulses to be superimposed on the VOLs of ALE and Ports 1 and 3. The noise is
due to external bus capacitance discharging into the Port 0 and Port 2 pins when these pins make 1 to 0 transitions during bus operation. In the worst
cases (capacitive loading 100pF), the noise pulse on the ALE line may exceed 0.45V with maxi VOL peak 0.6V. A Schmitt Trigger use is not necessary.
5.
Typicals are based on a limited number of samples and are not guaranteed. The values listed are at room temperature..
6.
Under steady state (non-transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin: 10 mA
Maximum IOL per 8-bit port:
Port 0: 26 mA
Ports 1, 2 and 3: 15 mA
Maximum total IOL for all output pins: 71 mA
If IOL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater than the listed test conditions.
7.
Lower than standart C51 product independant from Vcc supply.
Figure 93. ICC Test Condition, Active Mode
Figure 94. ICC Test Condition, Idle Mode
EA
VCC
VCC
ICC
(NC)
CLOCK
SIGNAL
VCC
All other pins are disconnected.
RST
XTAL2
XTAL1
VSS
VCC
P0
RST
EA
XTAL2
XTAL1
VSS
VCC
VCC
ICC
(NC)
P0
VCC
All other pins are disconnected.
CLOCK
SIGNAL



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