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AT85C5121 데이터시트 PDF




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부품번호 AT85C5121 기능
기능 8-bit Microcontroller
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AT85C5121 데이터시트, 핀배열, 회로
Features
80C51 Core
– 12 or 6 Clocks per Instruction (X1 and X2 Modes)
– 256 Bytes Scratchpad RAM
– Dual Data Pointer
– Two 16-bit Timer/Counters: T0 and T1
T83C5121 with 16 Kbytes Mask ROM
T85C5121 with 16 Kbytes Code RAM
T89C5121 with 16 Kbytes Code RAM and 16 Kbytes EEPROM
On-chip Expanded RAM (XRAM): 256 Bytes
Versatile Host Serial Interface
– Full-duplex Enhanced UART (EUART) with Dedicated Baud Rate Generator (BRG):
Most Standard Speeds up to 230K bits/s at 7.36 MHz
– Output Enable Input
– Multiple Logic Level Shifters Options (1.8V to VCC)
– Automatic Level Shifter Option
Multi-protocol Smart Card Interface
– Certified with Dedicated Firmware According to ISO 7816, EMV2000, GIE-CB, GSM
11.12V and WHQL Standards
– Asynchronous Protocols T = 0 and T = 1 with Direct and Inverse Modes
– Baud Rate Generator Supporting All ISO7816 Speeds up to D = 32/F = 372
– Parity Error Detection and Indication
– Automatic Character Repetition on Parity Errors
– Programmable Timeout Detection
– Card Clock Stop High or Low for Card Power-down Mode
– Support Synchronous Card with C4 and C8 Programmable Outputs
– Card Detection and Automatic De-activation Sequence
– Step-up/down Converter with Programmable Voltage Output: 5V, 3V (± 8% at
60 mA) and 1.8V (±8% at 20 mA)
– Direct Connection to Smart Card Terminals:
Short Circuit Current Limitation
www.DataSheet4U.com
Logic Level Shifters
4 kV ESD Protection (MIL/STD 833 Class 3)
Alternate Card Support with CLK, I/O and RST According to GSM 11.12V Standard
2x I/O Ports: 6 I/O Port1 and 8 I/O Port3
2x LED Outputs with Programmable Current Sources: 2, 4, or 10 mA
Hardware Watchdog
Reset Output Includes
– Hardware Watchdog Reset
– Power-on Reset (POR)
– Power-fail Detector (PFD)
4-level Priority Interrupt System with 7 Sources
7.36 to 16 MHz On-chip Oscillator with Clock Prescaler
Absolute CPU Maximal Frequency: 16 MHz in X1 mode, 8MHz in X2 mode
Idle and Power-down Modes
Voltage Operation: 2.85V to 5.4V
Low Power Consumption
– 8 mA Operating Current (at 5.4V and 3.68 MHz)
– 150 mA Maximum Current with Smart Card Power-on (at 16 MHz X1 Mode)
– 30 μA Maximum Power-down Current at 3.0V (without Smart Card)
– 100 μA Maximum Power-down Current at 5.4V (without Smart Card)
Temperature Range
– Commercial: 0 to +70°C Operating Temperature
– Industrial: -40 to +85°C Operating Temperature
Packages
– SSOP24
– QFN32
– PLCC52
8-bit
Microcontroller
with Multi-
protocol Smart
Card Interface
T83C5121
T85C5121
T89C5121
AT83C5121
AT85C5121
AT89C5121
Rev. 4164G–SCR–07/06




AT85C5121 pdf, 반도체, 판매, 대치품
Figure 4. PLCC52 Pinout
P1.4/CCLK
P1.3/CC4
EA
PSEN
ALE
P2.7/A15
P2.6/A14
P2.5/A13
P1.2/CPRES
P1.1/CC8
P1.0/CIO
P2.4/A12
RST
7 6 5 4 3 2 1 52 51 50 49 48 47
8 46
9 45
10 44
11 43
12 42
13 41
14 40
15 39
16 38
17 37
18 36
19 35
20 34
21 22 23 24 25 26 27 28 29 30 31 32 33
DVCC
VSS
P3.0/RxD
P3.1/TxD
P0.0/AD0
P0.1/AD1
P0.2/AD2
P0.3/AD3
P0.6/AD6
P3.3/INT1/OE
P3.4/T0
P3.2/INT0
P3.5/CIO1/T1
4 A/T8xC5121
4164G–SCR–07/06

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AT85C5121 전자부품, 판매, 대치품
A/T8xC5121
Table 1. Ports Description (Continued)
Port
Signal
Name
Alternate
Internal
Power
Supply
P3.5
CIO1
DVCC
P3.6
CCLK1
LED0
DVCC
P3.7
P3.7
CRST1
CRST1
LED1
DVCC
DVCC
ESD
Type Description
Input/Output function
I/O
P3.4 is a bi-directional I/O port with internal pull-ups.
Timer 0 function: External clock input
I When Timer 0 operates as a counter, a falling edge on the T0 pin
increments the count.
Reset configuration
Z
High impedance due to PMOS switched OFF
Alternate card function
I/O
Card I/O
Input/Output function
I/O
P3.5 is a bi-directional I/O port with internal pull-ups.
Timer 1 function: External clock input
I When Timer 1 operates as a counter, a falling edge on the T1 pin
increments the count.
Reset configuration
I
Input (high level due to internal pull-up)
Alternate card function
O
Card clock
LED function
These pins can be directly connected to the cathode of standard
O LED without external current limiting resistors. The typical current
of each output can be programmed by software to 2, 4 or 10 mA
(LEDCON register).
Input/Output function
I/O
P3.6 is a LED port.
Reset configuration
I
Input at high level
Alternate card function
O
Card reset
O LED function
These pins can be directly connected to the cathode of standard
LED without external current limiting resistors. The typical current
of each output can be programmed by software to 2, 4 or 10 mA
(LEDCON register).
I/O Input/Output function
P3.7 is a a LED port.
I Reset configuration
Input at high level
4164G–SCR–07/06
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