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參數(shù)資料
| 型號： | ST7SCR1R4 |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | TRANSISTOR PNP 32V 0.5A SOT-346 |
| 中文描述： | 8位低功耗，全速USB微控制器與16K的閃存，768內(nèi)存，智能卡的I /樓，計時器 |
| 文件頁數(shù)： | 1/102頁 |
| 文件大小： | 1413K |
| 代理商： | ST7SCR1R4 |
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Rev. 1.3
1/102
March 2003
ST7SCR
8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K
FLASH, 768
RAM, SMARTCARD I/F, TIMER
I
Memories
– Up to 16K of ROM or High Density Flash (HD-
Flash) program memory with read/write pro-
tection, HDFlash In-Circuit and In-Application
Programming. 100 write/erase cycles guaran-
teed, data retention: 20 years at 55°C
– Up to 768 bytes of RAM including up to 128
bytes stack and 256 bytes USB buffer
I
Clock, Reset and Supply Management
– Low Voltage Reset
– 2 power saving modes: Halt and Wait modes
– PLL for generating 48 MHz USB clock using a
4 MHz crystal
I
Interrupt Management
– Nested Interrupt Controller
I
USB (Universal Serial Bus) Interface
– 256-byte buffer for full speed bulk, control and
interrupt transfer types compliant with USB
specification (version 2.0)
– On-Chip 3.3V USB voltage regulator and
transceivers with software power-down
– 7 USB Endpoints:
One 8-byte Bidirectional Control Endpoint
One 64-byte In Endpoint,
One 64-byte Out Endpoint
Four 8-byte In Endpoints
I
35 or 4 I/O ports
:
– Up to 4 LED outputs with software program-
mable constant current (3 or 7 mA).
– 2 General purpose I/Os programmable as in-
terrupts
– Up to 8 line inputs programmable as interrupts
– Up to 20 Outputs
– 1 line assigned by default as static input after
reset
Table 1. Device Summary
Features
Program memory
User RAM (stack) - bytes
I
ISO7816-3 UART Interface:
– 4 Mhz Clock generation
– Synchronous/Asynchronous protocols (T=0,
T=1)
– Automatic retry on parity error
– Programmable Baud rate from 372 clock puls-
es up to 11.625 clock pulses (D=32/F=372)
– Card Insertion/Removal Detection
I
Smartcard Power Supply:
– Selectable card V
CC
1.8V, 3V, and 5V
– Internal Step-up converter for 5V supplied
Smartcards (with a current of up to 55mA) us-
ing only two external components.
– Programmable Smartcard Internal Voltage
Regulator (1.8V to 3.0V) with current overload
protection and 4 KV ESD protection (Human
Body Model) for all Smartcard Interface I/Os
I
One 8-bit Timer
– Time Base Unit (TBU) for generating periodic
interrupts.
I
Development Tools
– Full hardware/software development package
TQFP64 14x14
SO24
ST7FSCR1R4
16K FLASH
ST7SCR1R4
16K ROM
ST7FSCR1E4
16K FLASH
ST7SCR1E4
16K ROM
768 (128)
Peripherals
USB Full-Speed (7 Ep), TBU, Watchdog timer, ISO7816-3 Interface
Operating Supply
4.0 to 5.5V
Package
TQFP64
SO24
CPU Frequency
4 or 8 Mhz
Operating temperature
0°C to +70°C
1
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