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