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Z89393 Datasheet

  • Z89393

  • 16-BIT DIGITAL SIGNAL PROCESSORS

  • 61頁

  • ZILOG   ZILOG

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P R E L I M I N A R Y
Z89323/373/393
16-B
IT
D
IGITAL
S
IGNAL
P
ROCESSORS
P
RELIMINARY
C
USTOMER
P
ROCUREMENT
S
PECIFICATION
Z89323/373/393
16-B
IT
D
IGITAL
S
IGNAL
P
ROCESSORS
FEATURES
DSP ROM
OTP
DSP RAM
Device (K Words) (K Words) (Words)
Z89323
Z89373
Z89393
* External
Max Core
MIPS
20
16
20
Package
Device
Z89323
Z89373
Z89393
44-Pin
PLCC
68-Pin
PLCC
44-Pin
QFP
80-Pin 100-Pin
QFP
QFP
8
8
64*
512
512
512
s
Operating Temperature Ranges:
0擄C to +70擄C (Standard)
鈥?0擄C to +85擄C (Extended)
4.5- to 5.5-Volt Operating Range
On-Board Peripherals
s
s
s
s
4-Channel, 8-Bit Analog to Digital Converter (A/D)
On-Board Serial Peripheral Interface (SPI)
Up to 40 Bits of Programmable I/O
Two Channels of Programmable
Pulse Width Modulators (PWM)
Three General-Purpose Timer/Counters
Two Watch-Dog Timers (WDT)
Programmable PLL
Three Vectored Interrupts Servicing Eight
Interrupt Sources
Power-Down and Power-On Reset
s
DSP Core
s
s
s
s
s
s
20 MIPS @ 20 MHz, 16-Bit Fixed Point DSP
50 ns Instruction Cycle Time
s
Single-Cycle Multiply and ALU Operations
s
Two Internal Data Buses and Address Generators
s
Six Register Address Pointers
s
Optimized Instruction Set (30 Instructions)
s
GENERAL DESCRIPTION
The Z89323/373/393 DSP family of products builds on
Zilog's first generation Z893XX DSP core, integrating several
peripherals especially well suited for cost-effective voice,
telephony, and control applications.
These DSP devices feature a modified Harvard architecture
supported by one program bus and two on-chip data
buses. This bus structure is supported by two address
generators and six register pointers to ensure that the
20 MIPS DSP CPU is continually active.
The Z893X3 DSP family is designed to provide a complete
DSP and control system on a single chip. By integrating
various peripherals, such as a high-speed 4-channel, 8-bit
A/D, an SPI, three timers with PWM and WDT support, the
Z893X3 family provides a compact system solution and
reduces overall system cost.
To support a wide variety of development needs, the
Z893X3 DSP product family features the cost-effective
Z89323 with 8 Kwords of on-chip ROM, and the Z89373, a
16-MIPS OTP version of the Z89323, ideal for prototypes
and early production builds. For systems requiring more
than 8 Kwords of program memory, the Z89393 device can
address up to 64 Kwords of external program memory.
DS95DSP0101 Q4/95
1

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