TS87C58X2-MCE Atmel, TS87C58X2-MCE Datasheet - Page 35
![IC MCU 8BIT 32K OTP 40MHZ 44VQFP](/photos/6/92/69202/313-44-vqfp_sml.jpg)
TS87C58X2-MCE
Manufacturer Part Number
TS87C58X2-MCE
Description
IC MCU 8BIT 32K OTP 40MHZ 44VQFP
Manufacturer
Atmel
Series
87Cr
Datasheet
1.TS87C54X2-LIC.pdf
(62 pages)
Specifications of TS87C58X2-MCE
Core Processor
8051
Core Size
8-Bit
Speed
40/20MHz
Connectivity
UART/USART
Peripherals
POR, WDT
Number Of I /o
32
Program Memory Size
32KB (32K x 8)
Program Memory Type
OTP
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
44-TQFP, 44-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
TS87C58X2-MCE
Manufacturer:
TEMIC
Quantity:
6 867
15. Reduced EMI Mode
4431E–8051–04/06
The ALE signal is used to demultiplex address and data buses on port 0 when used with exter-
nal program or data memory. Nevertheless, during internal code execution, ALE signal is still
generated. In order to reduce EMI, ALE signal can be disabled by setting AO bit.
The AO bit is located in AUXR register at bit location 0. As soon as AO is set, ALE is no longer
output but remains active during MOVX and MOVC instructions and external fetches. During
ALE disabling, ALE pin is weakly pulled high.
Table 15-1.
Reset Value = XXXX XXX0b
Not bit addressable
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic
AUXR Register
AUXR - Auxiliary Register (8Eh)
AO
Bit
-
-
-
-
-
-
-
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
ALE Output bit
Clear to restore ALE operation during internal fetches.
Set to disable ALE operation during internal fetches.
5
-
4
-
3
-
Description
AT/TS8xC54/8X2
2
-
RESERVED
1
AO
0
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