ST7262
LOW SPEED USB 8-BIT MCU WITH 3 ENDPOINTS, FLASH OR
ROM MEMORY, LVD, WDG, 10-BIT ADC, 2 TIMERS, SCI, SPI
Memories
鈥?8K or 16K Program memory
(ROM, FASTROM or Dual voltage FLASH)
with read-write protection
鈥?In-Application and In-Circuit Programming for
FLASH versions
鈥?384 to 768 bytes RAM (128-byte stack)
s
Clock, Reset and Supply Management
鈥?Enhanced Reset System (Power On Reset)
鈥?Low Voltage Detector (LVD)
鈥?Clock-out capability
鈥?6 or 12 MHz Oscillator (8, 4, 2, 1 MHz internal
frequencies)
鈥?3 Power saving modes
s
USB (Universal Serial Bus) Interface
鈥?DMA for low speed applications compliant
with USB 1.5 Mbs specification (v 1.1) and
USB HID specification (v 1.0):
鈥?Integrated 3.3V voltage regulator and trans-
ceivers
鈥?Suspend and Resume operations
鈥?3 Endpoints
s
Up to 31 I/O Ports
鈥?Up to 31 multifunctional bidirectional I/O lines
鈥?Up to 12 External interrupts (3 vectors)
鈥?13 alternate function lines
鈥?8 high sink outputs
(8 mA@0.4 V/20 mA@1.3 V)
鈥?2 true open drain pins (N buffer 8 mA@0.4 V)
s
3 Timers
鈥?Configurable watchdog timer (8 to 500 ms
timeout)
鈥?8-bit Auto Reload Timer (ART) with 2 Input
Captures, 2 PWM outputs and External Clock
鈥?8-bit Time Base Unit (TBU) for generating pe-
riodic interrupts cascadable with ART
Device Summary
s
SO20
PDIP20
SO34 shrink
PDIP32 shrink
TQFP44
s
PDIP42 shrink
s
s
s
s
Analog Peripheral
鈥?10-bit A/D Converter with up to 8 input pins.
2 Communications Interfaces
鈥?Asynchronous Serial Communication inter-
face
鈥?Synchronous Serial Peripheral Interface
Instruction Set
鈥?8-bit data manipulation
鈥?63 basic instructions
鈥?17 main addressing modes
鈥?8 x 8 unsigned multiply instruction
鈥?True bit manipulation
Nested interrupts
Development Tools
鈥?Full hardware/software development package
ST72622L2
ST72621L4
ST72621J2
ST72621J4
Features
ST72623F2
ST72622K2
ST72621K4
Program memory - bytes
8K
8K
16K
8K
16K
8K
16K
RAM (stack) - bytes
384 (128)
384 (128)
768 (128)
384 (128)
768 (128)
384 (128)
768 (128)
Peripherals
USB, Watchdog, Low Voltage Detector, 8-bit Auto-Reload timer, Timebase unit, A/D Converter
Serial I/O
-
SPI
SPI + SCI
SPI
SPI + SCI
I/Os
11
21
23
31
Operating Supply
4.0V to 5.5V (Low voltage 3.0V to 5.5V ROM versions available)
Operating Temperature
0擄C to +70擄C
Packages
PDIP20/SO20
PDIP32
SO34
PDIP42/TQFP44
Rev. 2.2
June 2003
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