HY57V28820HC(L)T-I

4Banks x 4M x 8bits Synchronous DRAM

This document is a general product description and is subject to change without notice. Hynix Semiconductor does not assume any

responsibility for use of circuits described. No patent licenses are implied.

Rev. 0.1/Jan. 02

1

DESCRIPTION

The Hynix HY57V28820HC(L)T is a 134,217,728bit CMOS Synchronous DRAM, ideally suited for the Mobile applica-

tions which require low power consumption and extended temperature range. f HY57V28820HC(L)T is organized as

4banks of 4,194,304x8.

HY57V28820HC(L)T is offering fully synchronous operation referenced to a positive edge of the clock. All inputs and

outputs are synchronized with the rising edge of the clock input. The data paths are internally pipelined to achieve very

high bandwidth. All input and output voltage levels are compatible with LVTTL.

Programmable options include the length of pipeline (Read latency of 2 or 3), the number of consecutive read or write

cycles initiated by a single control command (Burst length of 1,2,4,8 or full page), and the burst count

sequence(sequential or interleave). A burst of read or write cycles in progress can be terminated by a burst terminate

command or can be interrupted and replaced by a new burst read or write command on any cycle. (This pipelined

design is not restricted by a `2N` rule.)

FEATURES

•

Single 3.3

±0.3V power supply

•

All device pins are compatible with LVTTL interface

•

JEDEC standard 400mil 54pin TSOP-II with 0.8mm

of pin pitch

•

All inputs and outputs referenced to positive edge of

system clock

•

Data mask function by DQM

•

Internal four banks operation

•

Auto refresh and self refresh

•

4096 refresh cycles / 64ms

•

Programmable Burst Length and Burst Type

- 1, 2, 4, 8 or Full Page for Sequential Burst

- 1, 2, 4 or 8 for Interleave Burst

•

Programmable CAS Latency ; 2, 3 Clocks

ORDERING INFORMATION

Part No.

Clock Frequency

Power

Organization

Interface

Package

HY57V28820HCT-6I

166MHz

Normal

4Banks x 4Mbits

x 8

LVTTL

400mil 54pin TSOP II

HY57V28820HCT-KI

133MHz

HY57V28820HCT-HI

133MHz

HY57V28820HCT-8I

125MHz

HY57V28820HCT-PI

100MHz

HY57V28820HCT-SI

100MHz

HY57V28820HCLT-6I

166MHz

Low power

HY57V28820HCLT-KI

133MHz

HY57V28820HCLT-HI

133MHz

HY57V28820HCLT-8I

125MHz

HY57V28820HCLT-PI

100MHz

HY57V28820HCLT-SI

100MHz