Z02205 Datasheet, PDF (3/30 Pages) Zilog, Inc. – MODEM CONTROLLER IDEAL FOR LOW POWER CONSUMPTION, SMALL SIZE REQUIREMENTS

PRODUCT SPECIFICATION
Z02205
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MODEM CONTROLLER IDEAL FOR LOW POWER
CONSUMPTION, SMALL SIZE REQUIREMENTS
FEATURES
Device
Z02205
ROM
(KB)
16
RAM*
(Bytes)
237
Speed
(MHz)
16
‡ Includes AT command set interpreter in on-chip ROM—
no external memory required
‡ Supports Tone dial or Pulse dial
‡ Call progress monitoring controls
‡ Handshake controls
‡ Guard Tone controls
‡ Line quality monitoring and Auto-Retrain
‡ Auto-Dial and Auto-Answer
‡ Glueless interface to Z02201 modem data pump
‡ Watch-Dog Timer (WDT)/Power-On Reset (POR)
‡ Type-I Caller ID
‡ Dynamic power management
‡ CMOS design for low power consumption
‡ 0°C to +70°C commercial temperature range
‡ 28-pin DIP, SOIC package
‡ 4.5V to 5.5V operating range
GENERAL DESCRIPTION
The Z02205 V.22bis Modem Controller serves as the mo-
dem controller in embedded V.22bis modem applications.
A complete modem can be made by adding ZiLOG data
pump (Z02201), phone line interface, and the required DTE
interface. The Z02205 has been designed for low-cost use
and includes a glueless interface to the ZiLOG data pumps.
The Z02205 is ideal for applications where small size and
low power consumption are requirements.
The Z02205 operates over dial-up telephone connections,
provides auto-dial and ring detect, and operates in either
SYNC or ASYNC modes.
The Z02205 includes AT command and modem control
firmware in on-chip ROM. It also includes enhanced wake-
up circuitry, programmable Watch-Dog Timers (WDT), and
low-noise/EMI options.
AT commands stored on-chip in ROM provide control over
the following modem controller functions:
‡ Call progress monitoring
‡ Handshake negotiation
‡ Dial controls—pulse or tone
‡ S-registers
‡ Auto-answer and auto-dial
‡ Guard tones
‡ On-hook and off-hook
‡ Auto-retrain
Standard Z02205 sample devices and demonstration boards
contain controller code tailored for operation on the North
American phone network. For production usage, customers
must modify the controller code to meet the requirements
of their particular country and application.
PS001000-MOD0599
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