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ST7261 Datasheet(PDF) 1 Page - STMicroelectronics

No. de pieza ST7261
Descripción Electrónicos  LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, ROM MEMORY, LVD, WDG, TIMER
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Fabricante Electrónico  STMICROELECTRONICS [STMicroelectronics]
Página de inicio  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7261 Datasheet(HTML) 1 Page - STMicroelectronics

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June 2003
1/80
Rev. 2.1
ST7261
LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS,
ROM MEMORY, LVD, WDG, TIMER
s
Memories
– 4K Program memory (ROM) with read-write
protection.
In-Circuit programming for Flash versions
– 256 bytes RAM memory (128-byte stack)
s
Clock, Reset and Supply Management
– Enhanced Reset System (Power On Reset)
– Low Voltage Detector (LVD)
– Clock-out capability
– 6 or 12 MHz Oscillator (8, 4, 2, 1 MHz internal
freq.)
– 3 Power saving modes: Halt, Wait and Slow
s
USB (Universal Serial Bus) Interface
– DMA for low speed applications compliant
with USB 1.5 Mbs specification (v 1.1) and
USB HID specification (v 1.0):
– Integrated 3.3V voltage regulator and trans-
ceivers
– Suspend and Resume operations
– 3 Endpoints
s
11 I/O Ports
– 11 multifunctional bidirectional I/O lines
– Up to 7 External interrupts (2 vectors)
– 8 high sink outputs (8mA@0.4 V/20mA@1.3)
s
2 Timers
– Configurable watchdog timer (8 to 500ms
timeout)
– 8-bit Time Base Unit (TBU) for generating pe-
riodic interrupts
s
Instruction Set
– 8-bit data manipulation
– 63 basic instructions
– 17 main addressing modes
– 8 x 8 unsigned multiply instruction
– True bit manipulation
s
Nested interrupts
s
Development Tools
– Full hardware/software development package
Device Summary
SO20
PDIP20
Features
ST72611F1
Program memory - bytes
4K ROM
RAM (stack) - bytes
256 (128)
Peripherals
USB, Watchdog, Low Voltage Detector, Time Base Unit
I/Os
11
Operating Supply
4.0V to 5.5V
CPU Frequency
Up to 8 MHz (with 6 or 12 MHz oscillator)
Operating Temperature
0°C to +70°C
Packages
PDIP20/SO20
1


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