W55412A Datasheet, PDF (3/5 Pages) Winbond – VOICE PROM (256K OTP)

W55412A
The W55412A's read function allows data stored on the chip to be accessed by an OTP demo board
cascaded with a Winbond PowerSpeech™ body.
The DATA pin is a bidirectional pin used for address input and data output. The MODE/PGM/CLK,
VPP, and MCLK/PREDATA pins are used to program or erase the chip, not used in the normal read
mode.
ABSOLUTE MAXIMUM RATINGS
SYMBOL
RATING
UNIT
NOTES
VDD
-0.5 to +7.0
V
1, 2
VIN
VSS -0.5 to VDD +0.5
V
3, 2
VOUT
VSS -0.5 to VDD +0.5
V
3, 2
TOPR
0 to 70
°C
4
PD
200
mW
5
Notes:
1. Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of
the device.
2. All voltages are referenced to VSS.
3. VIN and VOUT refer to pins WRP, RDP, DATA, and MCLK/PREDATA.
4. TOPR: Operating temperature for commercial market.
5. PD: Maximum power dissipation without output load.
DC CHARACTERISTICS
(VDD = 4.5 V, VSS = 0 V, TA = 0 to 70° C)
PARAMETER
SYMBOL
MIN.
Power Supply Voltage
VDD
Standby Current
ISB
Operating Current
IDD
Input Current (WRP, RDP)
II
Output Current Drive
IO
(DATA)
Sink
2.4V
-
-
-
-250 µA
250 µA
TYP.
4.5V
-
-
-
-
-
MAX.
5.0V
1 µA
3 mA
0.2 µA
-
-
CONDITIONS
VDD = 4.5V
-
No Load
-
-
VDATA = 4.2 V
VDATA = 0.3 V
Publication Release Date: May 1996
-3-
Revision A2