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W551C240 Datasheet Preview

W551C240 Datasheet

Serial Voice Memory

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W551C240 pdf
W551CXXX Data Sheet
Table of Contents-
SERIAL VOICE MEMORY
1. GENERAL DESCRIPTION ......................................................................................................... 2
1.1 W551Cxxx Features Description .................................................................................... 2
1.2 W551Cxxx Pad Description ............................................................................................ 3
1.2.1 W551C002/005/010/020/040/060/080 Pad Description....................................................3
1.2.2 W551C160/240/320 Pad Description ...............................................................................4
2. FUNCTION DESCRIPTION ........................................................................................................ 5
2.1 W551Cxxx System Block Diagram ................................................................................. 5
2.2 W551Cxxx Serial Read Mode......................................................................................... 7
2.3 W551Cxxx Self-test Mode .............................................................................................. 9
3. ELECTRICAL CHARACTERISTICS......................................................................................... 10
3.1 W551Cxxx Absolute Maximum Ratings ....................................................................... 10
3.2 W551Cxxx DC Characteristics ..................................................................................... 10
3.3 W551Cxxx AC Characteristics...................................................................................... 11
4. TIMING WAVEFORM ............................................................................................................... 12
5. APPLICATION CIRCUITS ........................................................................................................ 15
6. REVISION HISTORY ................................................................................................................ 17
Publication Release Date: October 3, 2005
- 1 - Revision A2



Winbond
Winbond

W551C240 Datasheet Preview

W551C240 Datasheet

Serial Voice Memory

No Preview Available !

W551C240 pdf
W551CXXX
1. GENERAL DESCRIPTION
The W551Cxxx series is a serial voice memory IC designed to interface directly with Winbond
PowerSpeech, BandDirector, and ViewTalkfamily ICs to meet the increasing market demand
for longer playback duration. The W551Cxxx uses the same three-pin serial interface that Winbond
serial flash memory W55Fxx uses, which makes it easier to simulate and verify the memory contents
in advance. In addition, the W551Cxxx also provides a "Self-test mode" to verify the voice memory
contents easily and quickly, and some members of the W551Cxxx series allow W551Cxxx chips to be
“cascaded” to further lengthen playback duration.
W551Cxxx Serial Voice Memory is used to store pre-determined data. The following table shows the
part numbers in the W551Cxxx series and their respective memory density.
PART #
DENSITY
W551C002 W551C005 W551C010 W551C020 W551C040 W551C060 W551C080
256K bits 512K bits 1M bits
2M bits
4M bits
6M bits
8M bits
PART #
DENSITY
W551C160 W551C240 W551C320
16M bits 24M bits 32M bits
1.1 W551Cxxx Features Description
Wide range of operating voltages: 2.4 V ~ 5.5 V
Operating frequency up to 1 MHz (@VDD = 2.4 V)
Versatile operating modes
Serial read mode
Serial check-sum output mode (used for manufacturing testing only)
Fast self-test mode
Cascading for longer duration applications
Serial shift-in address bus
Serial data mode
Three-pin connection interface: CLK, ADDR, DATA
Read access time: 500 ns
Low power consumption
Operating current: 5 mA (typ.)
Standby current: 2 uA (typ.)
-2-


Part Number W551C240
Description Serial Voice Memory
Maker Winbond
Total Page 17 Pages
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