IS43LD16640C datasheet(16/142 Pages) ISSI

tên linh kiện	IS43LD16640C

Giải thích chi tiết về linh kiện	1Gb (x16, x32) Mobile LPDDR2 S4 SDRAM

PDF	142 Pages

Scroll/Zoom	100%

nhà sản xuất	ISSI [Integrated Silicon Solution, Inc]

Trang chủ	http://www.issi.com

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IS43/46LD16640C

IS43/46LD32320C

Integrated Silicon Solution, Inc. — www.issi.com

Rev. C

07/02/2021

® Long-term Support

World Class Quality

MR2_Device Feature 2 (MA<7:0> = 02H):

OP7

OP6

OP5

OP4

OP3

OP2

OP1

OP0

(RFU)

RL & WL

OP<3:0>

RL & WL (Read Latency & Write

Latency)

Write-only

0001B: RL3 / WL1 (default)

0010B: RL4 / WL2

0011B: RL5 / WL2

0100B: RL6 / WL3

0101B: RL7 / WL4

0110B: RL8 / WL4

All others: reserved

MR4_Device Temperature (MA<7:0> = 04H):

OP7

OP6

OP5

OP4

OP3

OP2

OP1

OP0

TUF

(RFU)

SDRAM Refresh Rate

OP<2:0>

SDRAM Refresh Rate

Read-only

000B: 4 x tREFI, SDRAM Low Temp. operating limit exceeded

001B:

4 × tREFI, 4 × tREFIpb, 4 × tREFW

010B:

2 × tREFI, 2 × tREFIpb, 2 × tREFW,

011B:

1 × tREFI, 1 × tREFIpb, 1 × tREFW (<= 85C)

100B: RFU

MR3_I/O Configuration 1 (MA<7:0> = 03H):

OP7

OP6

OP5

OP4

OP3

OP2

OP1

OP0

(RFU)

OP<3:0>

DS (Drive Strength)

Write-only

0000B: reserved

0001B: 34.3 ohm typical

0010B: 40.0 ohm typical (default)

0011B: 48.0 ohm typical

0100B: 60.0 ohm typical

0101B: reserved

0110B: 80.0 ohm typical

0111

B: 120.0 ohm typical

All others: reserved

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