AS28F128J3M Datasheet PDF - Austin Semiconductor

AS28F128J3M View Datasheet(PDF) - Austin Semiconductor

Part Name

Description

Manufacturer

AS28F128J3M

Plastic Encapsulated Microcircuit 128Mb, x8 and x16 Q-FLASH Memory

Austin Semiconductor

AS28F128J3M Datasheet PDF : 8 Pages

1 2 3 4 5 6 7 8

Austin Semiconductor, Inc.

PEM

AS28F128J3M

Q-Flash

Three Chip Enable (CEx) pins are used for enabling and disabling Chip Enable Truth Table

the device by activating the device’s control logic, input buffer,

decoders, and sense amplifiers.

CE2 CE1

BYTE\ enables the device to be used in x8 or x16 configuration.

Byte=Low (logic 0) selects and 8-bit mode with address zero (A0)

selecting the High or Low Byte and Byte=High (logic 1) selects

the 16-bit or Word mode. When the device is in Word mode,

address one (A1) becomes the low order address bit and address

zero (A0) becomes a no-connect (NC).

VIL VIL

VIL VIH

VIH VIL

VIH VIH

RP\ is used to reset the device. When the device is disabled and

VIH VIH

RP\ is at VCC, the STANDBY mode is enabled. A reset time

(tRWH) is required after RP\ switches to a High (logic 1) and the

outputs become valid. Likewise, the device has a wake time (tRS)

from RP\ High until WRITES to the Command User Interface

[CUI] are recognized, RESETS the ISM and clears the status Absolute Maximum Ratings

Voltage

Min

Capacitance

Parameter/Condition Symbol

Typ

Input Capacitance

Cin

Output Capacitance Cbyte

Cout

Max

Units

Temperature under

-55

Bias

Storage Temperature

-65

For VCCQ=2.7v to 3.6v -2

Voltage on any pin

Short Circuit Current

CE0

VIL

VIH

VIL

VIH

VIL

VIH

VIL

VIH

Max

125

100

Device

Enabled

Disabled

Enabled

Disabled

Units

Notes

Stress greater than those listed under ABSOLUTE MAXIMUM RATINGS may

cause permanent damage to the device. This is a stress rating only and functional

operation of the device at these or any other conditions greater than those

indicated in the operational sections of this specification is not implied. Exposure

to absolute maximum conditions for any duration or segment of time may affect

device reliability.

Pin Description Table:

Notes

1: All specified voltages are with respect to GND. Minimum DC

voltage is -0.5v on input/output pins and -0.2v on Vcc and VPEN

pins. During transitions, this level may undershoot to -2.0v for

periods </= 20ns. Maximum DC voltage on input/output pins,

Vcc and VPEN is VCC+0.5V which, during transitions, may

overshoot to Vcc + 2.0v for periods <20ns.

Signal Name

Address

Chip Enables

Write Enable

Reset/Power-Down

Output Enable

Byte Mode Control

Programming Voltage

Status Pin/Flag

Input/Output Voltage

Supply Voltage

Digital Ground

No Connect(s)

AS28F128J3MRG

Revision 5.0 11/23/04

Symbol

Type

A0, A1, A2. A3, Input

A4, A5, A6, A7

A8, A9, A10, A11

A12,A13,A14,A15

A16,A17,A18,A19

A20,A21,A22,A23

CE0, CE1, CE2 Input

WE\

Input

RP\

Input

32,28,27,26,

25,24,23,22,

20,19,18,17,

13,12,11,10,

8,7,6,5,

4,3,1,30

14,2,29

OE\

Input

BYTE\

Input

VPEN

Input

STS

Output

VCCQ

VCC

GND

Supply

9, 37

21, 42, 48

1, 30, 56

Description

Address Inputs during READ and WRITE Operations. A0 is only

used in x8 mode and will be a NC in x16 mode.

Three Chip Enable pins for Multiple devices. See chart for function

Write Control

Reset/Power-Down, When Low the control pin resets the status Reg.

and ISM to array READ mode.

Ouput Enable control enable data output buffers when Low, and when

High the output buffers are disabled

Configuration Control pin. When High the device is in x16 mode, when

Low the device is in Byte mode (x8)

Necessary Voltage pin for Programming, Erasing or configuring lock

bits. Typically connected to VCC. When VPEN</=VPENLK, this

enables Hardware Write Protect.

Indicates the status of the ISM. When configured in level mode, STS

acts as a RY/BY\ pin. When configured in its pulse mode, it can

pulse to indicate PROGRAM and or ERASE completion.

Separate/Isolated Voltage supply for Input/Output bus. Allows

voltage matching to different interface standards.

Power Supply: 2.7V - 3.6V

Ground

No electrical connection or function

Austin Semiconductor, Inc. reserves the right to change products or modify product specifications with appropriate notification

For Additional Products and Information visit out Web site at www.austinsemiconductor.com

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