P
RODUCT
S
PECIFICATION
Z89223/273/323/373
16-B
IT
D
IGITAL
S
IGNAL
P
ROCESSORS
WITH
A/D C
ONVERTER
FEATURES
Device
Z89223
Z89273
Z89323
Z89373
Package
44-PLCC, 44-PQFP
44-PLCC
64-TQFP, 68-PLCC, 80-PQFP
64-TQFP, 68-PLCC, 80-PQFP
ROM
(Kwords)
8
8
8
8
OTP
(Kwords)
Data RAM
(Words)
512
512
512
512
MIPS
20
20
20
20
Operating Range
•
•
On-Chip Peripherals
•
•
•
5V ±10%
0°C to 70°C Standard Temperature
–40°C to +85°C Extended Temperature
4-Channel, 8-Bit Half-Flash A/D Converter
Serial Peripheral Interface (SPI)
Three General-Purpose Counter/Timers
– Two Pulse Width Modulators (PWM)
– Two Watch-Dog Timers (WDT)
Up to 40 Bits of I/O
PLL System Clock
Three Vectored Interrupts Servicing Eight Sources
Low Power Clock Modes with Wake-up Options
DSP Core
•
•
•
•
•
16-Bit Fixed Point DSP, 24-Bit ALU and Accumulator
Single-Cycle Multiply and ALU Operations
Six-Level Hardware Stack
Six Data RAM Pointers and Sixteen Program Memory
Pointers
RISC Processor with 30 Instruction Types
•
•
•
•
GENERAL DESCRIPTION
The Z893x3 products are high-performance Digital Signal
Processors (DSP) with a modified Harvard architecture fea-
turing separate program and dual data memory banks. The
design is optimized for processing power with a minimum
of silicon area.
The Z893x3 16/24-Bit architecture accommodates ad-
vanced signal processing algorithms. The operating perfor-
mance and efficient architecture provide deterministic in-
struction execution. Compression, filtering, frequency
detection, audio, voice detection, speech synthesis, and oth-
er vital algorithms can all be implemented.
DS000202-DSP0599
Six data RAM pointers provide circular buffer capabilities
and simultaneous dual operand fetching. Three vectored in-
terrupts are complemented by a six-level stack.
By integrating a high-speed 4-channel, 8-bit A/D, SPI, three
Counter/Timers with PWM and WDT support, and up to 40
bits of I/O, the Z893x3 family provides a compact low-cost
system solution.
To support a wide variety of development requirements, the
Z893x3 DSP product family features the cost-effective
Z89223/323 with 8 KWords of ROM. The Z89273/373, an
1
ZILOG [ ZILOG, INC. ]
