T89C5121-ICUIL Atmel, T89C5121-ICUIL Datasheet - Page 59
T89C5121-ICUIL
Manufacturer Part Number
T89C5121-ICUIL
Description
IC 8051 MCU W/SMART CARD 24SSOP
Manufacturer
Atmel
Series
89Cr
Datasheet
1.89C5121-SK1.pdf
(115 pages)
Specifications of T89C5121-ICUIL
Core Processor
8051
Core Size
8-Bit
Speed
16MHz
Connectivity
SmartCard, UART/USART
Peripherals
LED, POR, WDT
Number Of I /o
14
Program Memory Size
16KB (16K x 8)
Program Memory Type
Flash RAM
Eeprom Size
16K x 8
Ram Size
256 x 8
Voltage - Supply (vcc/vdd)
2.85 V ~ 5.4 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
24-SSOP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Data Converters
-
Other names
Q1468934
T89C5121-ICSIL
T89C5121-ICSIL
T89C5121-ICSIL
T89C5121-ICSIL
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4164G–SCR–07/06
Table 43. AUXR1 Register
AUXR1 - Dual Pointer Selection Register (A2h)
Reset value = XXXX XXX0b
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic
6
-
DPS
Bit
-
-
-
-
-
-
-
Description
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.
Data pointer 1
Clear to select DPTR0 as Data Pointer.
Set to select DPTR1 as Data Pointer.
5
-
4
-
3
-
2
-
A/T8xC5121
1
-
DPS
0
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