Device description

M27V160

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2

Device description

Table 2 lists the operating modes of the M27V160. A single power supply is required in the

Signature.

2.1

Read mode

The M27V160 has two organisations, Word-wide and Byte-wide. The organisation is

organisation is selected and the Q15A–1 pin is used for Q15 Data Output. When the

the Address Input A–1. When the memory is logically regarded as 16 bit wide, but read in

The M27V160 has two control functions, both of which must be logically active in order to

obtain data at the outputs. In addition the Word-wide or Byte- wide organisation must be

selected.

Chip Enable (E) is the power control and should be used for device selection. Output Enable

(G) is the output control and should be used to gate data to the output pins independent of

2.2

Standby mode

The M27V160 has a standby mode which reduces the active current from 20mA to 20µA

details.The M27V160 is placed in the standby mode by applying a CMOS high signal to the

Table 2.

1.

Mode

E

G

A9

Q15A–1

Q14-Q8

Q7-Q0

Read Word-wide

X

Data Out

Data Out

Data Out

Read Byte-wide Upper

Hi-Z

Data Out

Read Byte-wide Lower

Hi-Z

Data Out

Output Disable

X

X

Hi-Z

Hi-Z

Hi-Z

Program

X

Data In

Data In

Data In

Verify

X

Data Out

Data Out

Data Out

Program Inhibit

X

Hi-Z

Hi-Z

Hi-Z

Standby

X

X

X

Hi-Z

Hi-Z

Hi-Z

Electronic Signature

Code

Codes

Codes