AT83C5135 Atmel Corporation, AT83C5135 Datasheet - Page 32
AT83C5135
Manufacturer Part Number
AT83C5135
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT83C5134.pdf
(166 pages)
Specifications of AT83C5135
Max. Operating Frequency
32 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)
512
Operating Voltage (vcc)
2.7 to 3.6
Timers
4
Mask Rom (kbytes)
16
Watchdog
Yes
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AT83C5134/35/36
Reset Value = 0X0X 1100b
Not bit addressable
Number
Bit
4
3
2
1
0
Mnemonic
EXTRAM
XRS1
XRS0
AO
Bit
-
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit
ERAM Size
XRS1XRS0
0
0
1
1
EXTRAM bit
Cleared to access internal ERAM using MOVX at Ri at DPTR.
Set to access external memory.
ALE Output bit
Cleared, ALE is emitted at a constant rate of 1/6 the oscillator frequency (or 1/3 if X2
mode is used) (default).
Set, ALE is active only when a MOVX or MOVC instruction is used.
0
1
0
1
ERAM size
256 bytes
512 bytes
768 bytes
1024 bytes (default)
7683C–USB–11/07
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