October 2001

1/6

This is preliminary information on a new product now in development. Details are subject to change without notice.

Rev. 1.0

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

– 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

ence pins

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

Subsets in

TQFP44 10x10

and SO34

TQFP64

10x10

1