AT89C5131A-L Atmel Corporation, AT89C5131A-L Datasheet - Page 167

• Manufacturer Part Number: AT89C5131A-L
• Manufacturer: Atmel Corporation

Specifications of AT89C5131A-L

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 48 MHz
• Cpu: 8051-12C
• Max I/o Pins: 34
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 1.25
• Eeprom (bytes): 1024
• Self Program Memory: API
• Operating Voltage (vcc): 3.0 to 3.6
• Timers: 4
• Isp: UART/USB
• Watchdog: Yes

External Data Memory Write
Cycle
4338F–USB–08/07
PORT 0
PORT 2
PSEN
ALE
WR
OR SFR-P2
ADDRESS
Table 119. AC Parameters for a Variable Clock
Symbol
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
T
WLWH
QVWX
QVWH
WHQX
WHLH
WHLH
RLRH
RHDX
RHDZ
AVDV
AVWL
RLDV
LLWL
LLWL
RLAZ
LLDV
A0-A7
T
T
LLAX
AVWL
T
LLWL
Type
Max
Max
Max
Max
Max
Max
Max
Min
Min
Min
Min
Min
Min
Min
Min
Min
ADDRESS A8-A15 OR SFR P2
T
QVWX
Standard
Clock
3 T + x
6 T - x
6 T - x
5 T - x
2 T - x
8 T - x
9 T - x
3 T - x
4 T - x
7 T - x
T + x
T - x
T - x
T - x
x
x
T
QVWH
T
DATA OUT
WLWH
X2 Clock
1.5 T + x
0.5 T + x
2.5 T - x
4.5 T - x
1.5 T - x
0.5 T - x
3.5 T - x
0.5 T - x
0.5 T - x
3 T - x
3 T - x
2 T - x
4T -x
T - x
x
x
T
WHLH
X Parameter
20
20
25
20
40
60
25
25
25
15
25
10
15
15
T
0
0
WHQX
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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