S71GS256 datasheet(183/195 Pages) SPANSION

183 / 195 page

December 15, 2004 cellRAM_02_A0

CellularRAM-2A

183

Ad vance

Info rmat i o n

DC Characteristics

Wireless Temperature (-25°C ≤ TC ≤ +85°C)

Industrial Temperature (-40°C < TC < +85°C)

Notes:

1. This parameter is specified with the outputs disabled to avoid external loading effects. The user must add current

required to drive output capacitance expected in the actual system.

2. This device assumes a standby mode if the chip is disabled (CE# HIGH). It will also automatically go into a standby

mode whenever all input signals are quiescent (not toggling), regardless of the state of CE#, LB#, and UB#. In

order to achieve low standby current, all inputs must be either VCCQ or VSS.

3. ISB (MAX) values measured with PAR set to FULL ARRAY and TCR set to +85°C.

Notes:

1. ITCR (MAX) values measured with FULL ARRAY refresh.

2. This device assumes a standby mode if the chip is disabled (CE# HIGH). It will also automatically go into a standby mode

whenever all input signals are quiescent (not toggling), regardless of the state of CE#, LB#, and UB#. In order to achieve

low standby current, all inputs must be either VCCQ or VSS.

Table 69. Electrical Characteristics and Operating Conditions

Description

Conditions

Symbol

Min

Max

Units

Notes

Supply Voltage

VCC

1.70

1.95

I/O Supply Voltage

1.8 V

VCCQ

1.70

2.25

Input High Voltage

VIH

1.4

VCCQ + 0.2

Input Low Voltage

VIL

-0.20

0.4

Output High Voltage

IOH = -0.2mA

VOH

0.80 VCCQ

Output Low Voltage

IOL = +0.2mA

VOL

0.20 VCCQ

Input Leakage Current

VIN = 0 to VCCQ

ILI

1µA

Output Leakage Current

OE# = VIH or

Chip Disabled

ILO

1µA

Read Operating Current

VIN = VCCQ or 0V

Chip Enabled, IOUT = 0

ICC1

1, 2

Write Operating Current

VIN = VCCQ or 0V

Chip Enabled

ICC2

1, 2

MAX Standby Current

VIN = VCCQ or 0V

Chip Disabled

ISB

100

µA

2, 3

Table 70. Temperature Compensated Refresh Specifications and Conditions

Description

Conditions

Symbol

Density

Max Case

Temperature

Typ

Max

Units

Temperature Compensated

Refresh Standby Current

VIN = VCCQ or 0V,

Chip Disabled

ITCR

64 Mb

+85°C

100

µA

+70°C

TBD

+45°C

TBD

+15°C

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