EDS1232CASE datasheet(28/53 Pages) ELPIDA

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EDS1232CASE

Data Sheet E0351E30 (Ver. 3.0)

Write operation

Burst write or single write mode is selected by the OPCODE of the mode register.

1. Burst write: A burst write operation is enabled by setting OPCODE (A9, A8) to (0, 0). A burst write starts in the

same clock as a write command set. (The latency of data input is 0 clock.) The burst length can be set to 1, 2, 4

and 8, like burst read operations. The write start address is specified by the column address and the bank select

address at the write command set cycle.

WRIT

CLK

Command

ACT

Row

Column

in 0

in 6

in 7

Address

in 1

in 4

in 5

in 3

BL = 1

BL = 2

BL = 4

BL = 8

tRCD

in 0

in 1

in 2

in 3

CL = 2, 3

Burst write

2. Single write:

A single write operation is enabled by setting OPCODE (A9, A8) to (1, 0).

In a single write

operation, data is only written to the column address and the bank select address specified by the write

command set cycle without regard to the burst length setting. (The latency of data input is 0 clock).

WRIT

CLK

Command

ACT

Row

Column

in 0

Address

tRCD

Single write

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