T89C51RD2-SMSIM Atmel, T89C51RD2-SMSIM Datasheet - Page 88
T89C51RD2-SMSIM
Manufacturer Part Number
T89C51RD2-SMSIM
Description
IC MICRO CTRL 64K FLASH 68PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet
1.T89C51RD2-SMSIM.pdf
(104 pages)
Specifications of T89C51RD2-SMSIM
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
SPI, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
48
Program Memory Size
64KB (64K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
1.25K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
68-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
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External Data Memory
Characteristics
Table 48. Symbol Description
Table 49. AC Parameters for a Fix Clock
88
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WLWH
QVWH
WHQX
QVWX
WHLH
RLRH
RLDV
RHDX
RHDZ
AVDV
AVWL
LLDV
LLWL
RLAZ
T89C51RD2
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WLWH
QVWX
QVWH
WHQX
WHLH
RHDX
RHDZ
AVWL
RLRH
RLDV
AVDV
LLWL
RLAZ
LLDV
Parameter
RD Pulse Width
WR Pulse Width
RD to Valid Data In
Data Hold After RD
Data Float After RD
ALE to Valid Data In
Address to Valid Data In
ALE to WR or RD
Address to WR or RD
Data Valid to WR Transition
Data set-up to WR High
Data Hold After WR
RD Low to Address Float
RD or WR High to ALE high
Min
130
130
160
50
75
10
15
10
0
-M
Max
100
160
165
100
30
40
0
Min
130
130
160
50
75
10
15
10
0
-L
Max
100
160
165
100
30
40
0
Units
4243G–8051–05/03
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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