參數(shù)資料
型號(hào)： ST7SCR1R4
廠商： STMICROELECTRONICS
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PQFP64
封裝： 14 X 14 MM, PLASTIC, TQFP-64
文件頁(yè)數(shù)： 1/10頁(yè)
文件大?。?/td> 68K
代理商： ST7SCR1R4
Rev. 1.2
December 2001
1/10
This is preliminary information on a new product in development or undergoing evaluation. Details are subject to change without notice.
ST7SCR
8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K
FLASH, 768 RAM, SMARTCARD I/F, TIMER
DATA BRIEFING
s
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 Pro-
gramming
– Up to 768 bytes of RAM including up to 128
bytes stack and 256 bytes USB buffer
s
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
s
Interrupt Management
– Nested Interrupt Controller
s
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
s
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
s
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
s
Smartcard Power Supply:
– Selectable card VCC 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
s
One 8-bit Timer
– Time Base Unit (TBU) for generating periodic
interrupts.
s
Development Tools
– Full hardware/software development package
Table 1. Device Summary
TQFP64 14x14
SO24
Features
ST7FSCRDIE ST7SCRDIE
ST7FSCR1R4 ST7SCR1R4
ST7FSCR1E4 ST7SCR1E4
Program memory
16K FLASH
16K ROM
16K FLASH
16K ROM
16K FLASH
16K ROM
User RAM (stack) - bytes
768 (256)
Peripherals
USB Full-Speed (7 Ep), TBU, Watchdog timer, ISO7816-3 Interface
Operating Supply
4.0 to 5.5V
Package
DIE
TQFP 64
SO24
CPU Frequency
4 or 8 Mhz
Operating temperature
0
°C to +70°C
1
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