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HT9580 Datasheet

  • HT9580

  • Character Pager Controller

  • 440.99KB

  • 63頁

  • HOLTEK

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Preliminary
Features
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HT9580
Character Pager Controller
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Operating voltage: 2.4V~3.5V
Temperature range: -30擄C to +85擄C
low power, high performance M6502 core
low power crystal oscillator control
-
512/1200/2400 bps data rate operation
虜CCIR
Radio Paging Code No.1虜 (POCSAG)
compatible
76.8kHz crystal for all available data rates
High/low system clock switching capability
44 Kbytes program ROM
848 bytes global data RAM
Internal 2 Mbits Character ROM
256 Kbits internal SRAM
External option up to 2 Mbits Character
ROM or 2 Mbits SRAM
SED15X(KSX), MC141X and HD66410
series LCD driver compatible interface
option
46 bytes message buffer
One 16-bit timer and one 8-bit timer
Internal 2Hz or 1Hz RTC or Real Time
Clock option
Single buzzer generator output (BZ) with
duty cycle control
low current HALT mode operation
16-bit watchdog timer
Built-in data filter (16-times over-sampling )
and bit clock recovery
Advanced synchronization algorithm
2-bit random and (optional) 4-bit burst er-
ror correction for address and message
Up to 6 user addresses and 6 user frames,
independently programmable
3 RF power-on timing control pins
and Received data inversion (optional)
Built in SPI circuit
Out-of-range condition indicator
One internal 8-bit D/A converter
Battery fail and battery low detection
80-pin LQFP package
General Description
The HT9580 is a high performance pager con-
troller which can be used for Chinese Pager
system applications. The HT9580 4-in-1 Char-
acter Pager Controller combines a POCSAG de-
coder with a M6502 microprocessor core, 2
Mbits Character ROM and 256 Kbits SRAM to
provide both high decoder performance and ex-
cellent system flexibility. The decoder utilizes a
2-bit random error correction algorithm and
therefore provides excellent decoder sensitiv-
ity. The controller contains a full function
pager decoder at a 512, 1200, 2400 bps data
rates. Using an M6502 core takes advantage of
a flexible external control interface, LCD driver
chips and abundant programming resources
from worldwide providers. The internal SPI
would communicate with SPI of FLEX
TM
high
speed pager decoder.
FLEX
TM
is a trademark of Motorola Inc.
1
April 28, 2000

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