ST7HUB Datasheet, PDF (1/6 Pages) STMicroelectronics – USB 1.1 HUB WITH 2 DOWNSTREAMS, FULL SPEED FUNCTION, 8-BIT MCU, 10-BIT ADC, 3 TIMERS, 2 PWMs

ST7HUB
USB 1.1 HUB WITH 2 DOWNSTREAMS, FULL SPEED
FUNCTION, 8-BIT MCU, 10-BIT ADC, 3 TIMERS, 2 PWMs
DATA BRIEFING
s Memories
– 32K High Density Flash (HD-Flash) program
memory with read/write protection or 16K
ROM
– In-Application Programming (IAP) via USB
and In-Circuit programming (ICP) for Flash
device
– 768 bytes RAM memory including up to 176
bytes for USB buffers and up to 256 bytes
stack
s Clock, Reset and Supply Management
– Enhanced Reset System (Power On Reset)
and Low Voltage Detector (LVD) on some de-
vices
– PLL for generating 48 MHz USB clock using a
4 MHz crystal
– Up to 12 MHz internal frequency on ROM de-
vice
– Up to 8 MHz internal frequency on Flash de-
vice
– Clock-out capability
– 2 Power saving modes
s USB HUB Function
– 3 bus-powered downstream ports (1 connect-
ed internally to embedded function)
– Individual downstream Power Switching
– Overcurrent Protection for each downstream
– Supports all USB Standard and HUB com-
mands
– Integrated 3.3V voltage regulator and trans-
ceivers
s USB Full Speed Function
– 7 USB Endpoints:
One 8-byte Bidirectional Control Endpoint
One 64-byte In Endpoint (Interrupt or Bulk)
One 64-byte Out Endpoint (Interrupt or Bulk)
Four 8-byte In Endpoints (Interrupt)
– DMA for Full speed applications compliant
with USB specification (v 2.0)
– Suspend and Resume operations
s 35 I/O Ports
– 35 multifunctional bidirectional I/O lines
– 23 individually selectable external interrupts
(3 vectors) with per port programmable sensi-
tivity
– Pull up resistors in input individually selecta-
ble by software
TQFP64
10x10
Subsets in
TQFP44 10x10
and SO34
– 3 ports (20 I/Os) can be individually config-
ured to open drain pull up configuration for
PS/2 and keyboard function.
– 7 high sink outputs (8 mA@0.4 V/
20 mA@1.3 V)
s 3 Timers
– Configurable watchdog timer (8 to 500 ms
timeout)
– 8 bit Time Base Unit (TBU) for generating pe-
riodic interrupts, cascadable with ART
– 8 bit Auto-Reload Timer (ART) with 2 Input
Captures, 2 PWM outputs and External Clock
Input
s Analog Peripheral
–
10-bit A/D
ence pins
Converter
with
V_REF+
and
V_REF-
refer-
4 high impedance high accuracy channels
12 standard channels
s 1 Communication Interface
– Serial Peripheral Interface (SPI)
s Instruction Set
– 8-bit data manipulation
– 63 basic instructions
– 17 main addressing modes
– Nested Interrupts
– 8 x 8 unsigned multiply instruction
– True bit manipulation
s Development Tools
– Full hardware/software development package
s Operating Conditions
– 4.0 to 5.25V power supply
– 0 to 70°C temperature range
Rev. 1.0
October 2001
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This is preliminary information on a new product now in development. Details are subject to change without notice.
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