Z89323 Datasheet, PDF (1/61 Pages) Zilog, Inc. – 16-BIT DIGITAL SIGNAL PROCESSORS

PRELIMINARY
Z89323/373/393
16-BIT DIGITAL SIGNAL PROCESSORS
PRELIMINARY
CUSTOMERPROCUREMENTSPECIFICATION
FEATURES
DSP ROM OTP DSP RAM Max Core
Device (K Words) (K Words) (Words)
MIPS
Z89323
8
512
20
Z89373
8
512
16
Z89393 64*
512
20
* External
s Operating Temperature Ranges:
0°C to +70°C (Standard)
–40°C to +85°C (Extended)
s 4.5- to 5.5-Volt Operating Range
DSP Core
s 20 MIPS @ 20 MHz, 16-Bit Fixed Point DSP
s 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)
Z89323/373/393
16-BIT DIGITAL
SIGNAL PROCESSORS
Package 44-Pin 68-Pin 44-Pin 80-Pin 100-Pin
Device PLCC PLCC QFP QFP QFP
Z89323
Z89373
Z89393
On-Board Peripherals
s 4-Channel, 8-Bit Analog to Digital Converter (A/D)
s On-Board Serial Peripheral Interface (SPI)
s Up to 40 Bits of Programmable I/O
s Two Channels of Programmable
Pulse Width Modulators (PWM)
s Three General-Purpose Timer/Counters
s Two Watch-Dog Timers (WDT)
s Programmable PLL
s Three Vectored Interrupts Servicing Eight
Interrupt Sources
s Power-Down and Power-On Reset
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
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