Datasheet > SSTUG32868ET/G,518

SSTUG32868ET/G,518

更新时间： 2024-01-19 17:54:15

品牌	Logo	应用领域
恩智浦 - NXP		双倍数据速率逻辑集成电路触发器
页数	文件大小	规格书
29页	168K
描述
SSTUG32868 - 1.8 V 28-bit 1 : 2 configurable registered buffer with parity for DDR2-1G RDIMM applications BGA 176-Pin

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SSTUG32868ET/G,518 技术参数

生命周期：	Obsolete	零件包装代码：	BGA
包装说明：	6 X 15 MM, 0.70 MM PITCH, LEAD FREE, PLASTIC, MO-246, SOT932-1, TFBGA-176	针数：	176
Reach Compliance Code：	unknown	HTS代码：	8542.39.00.01
风险等级：	5.84	系列：	32868
JESD-30 代码：	R-PBGA-B176	长度：	15 mm
逻辑集成电路类型：	D FLIP-FLOP	湿度敏感等级：	2
位数：	28	功能数量：	1
端子数量：	176	最高工作温度：	70 °C
最低工作温度：		输出特性：	OPEN-DRAIN
输出极性：	COMPLEMENTARY	封装主体材料：	PLASTIC/EPOXY
封装代码：	TFBGA	封装形状：	RECTANGULAR
封装形式：	GRID ARRAY, THIN PROFILE, FINE PITCH	峰值回流温度（摄氏度）：	260
传播延迟（tpd）：	1.5 ns	认证状态：	Not Qualified
座面最大高度：	1.15 mm	最大供电电压 (Vsup)：	2 V
最小供电电压 (Vsup)：	1.7 V	标称供电电压 (Vsup)：	1.8 V
表面贴装：	YES	技术：	CMOS
温度等级：	COMMERCIAL	端子形式：	BALL
端子节距：	0.65 mm	端子位置：	BOTTOM
处于峰值回流温度下的最长时间：	40	触发器类型：	POSITIVE EDGE
宽度：	6 mm	最小 fmax：	450 MHz
Base Number Matches：	1

SSTUG32868ET/G,518 数据手册

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SSTUG32868

1.8 V 28-bit 1 : 2 conﬁgurable registered buffer with parity for

DDR2-1G RDIMM applications

Rev. 01 — 23 April 2007

Product data sheet

1. General description

The SSTUG32868 is a 1.8 V 28-bit 1 : 2 register speciﬁcally designed for use on two rank

by four (2R × 4) and similar high-density Double Data Rate 2 (DDR2) memory modules. It

is similar in function to the JEDEC-standard 14-bit DDR2 register, but integrates the

functionality of the normally required two registers in a single package, thereby freeing up

board real-estate and facilitating routing to accommodate high-density Dual In-line

Memory Module (DIMM) designs.

The SSTUG32868 also integrates a parity function, which accepts a parity bit from the

memory controller, compares it with the data received on the D-inputs and indicates

whether a parity error has occurred on its open-drain QERR pin (active LOW).

It further offers added features over the JEDEC standard register in that it is permanently

conﬁgured for high output drive strength. This allows use in high density designs with

heavier than normal net loading conditions. Furthermore, the SSTUG32868 features two

additional chip select inputs, which allow more versatile enabling and disabling in densely

populated memory modules. Both added features (drive strength and chip selects) are

fully backward compatible to the JEDEC standard register. Finally, the SSTUG32868 is

optimized for the fastest propagation delay in the SSTU family of registers.

The SSTUG32868 is packaged in a 176-ball, 8 × 22 grid, 0.65 mm ball pitch, thin proﬁle

ﬁne-pitch ball grid array (TFBGA) package, which (while requiring a minimum

6 mm × 15 mm of board space) allows for adequate signal routing and escape using

conventional card technology.

2. Features

I 28-bit data register supporting DDR2

I Fully compliant to JEDEC standard for SSTUB32868

I Supports 2 rank by 4 DIMM density by integrating equivalent functionality of two

JEDEC-standard DDR2 registers (that is, 2 × SSTUA32864 or 2 × SSTUA32866)

I Parity checking function across 22 input data bits

I Parity out signal

I Controlled multi-impedance output impedance drivers enable optimal signal integrity

and speed

I Meets or exceeds SSTUB32868 JEDEC standard speed performance

I Supports up to 450 MHz clock frequency of operation

I Permanently conﬁgured for high output drive

I Optimized pinout for high-density DDR2 module design

I Chip-selects minimize power consumption by gating data outputs from changing state

12 3 4 5 6 7...29

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SSTUG32868ET/G,518 替代型号

型号	品牌	替代类型	描述	数据表
SSTUG32868ET/S,518	NXP	完全替代	SSTUG32868 - 1.8 V 28-bit 1 : 2 configurable registered buffer with parity for DDR2-1G RDI

与SSTUG32868ET/G,518相关器件

型号	品牌	获取价格	描述	数据表
SSTUG32868ET/S,518	NXP	获取价格	SSTUG32868 - 1.8 V 28-bit 1 : 2 configurable registered buffer with parity for DDR2-1G RDI
SSTUG32868ETS	NXP	获取价格	1.8 V 28-bit 1 : 2 configurable registered buffer with parity for DDR2-1G RDIMM applicatio
SSTUG32868G	NXP	获取价格	1.8 V 28-bit 1 : 2 configurable registered buffer with parity for DDR2-1G RDIMM applicatio
SSTUH32864	NXP	获取价格	1.8 V high output drive configurable registered buffer for DDR2 RDIMM applications
SSTUH32864EC	NXP	获取价格	1.8 V high output drive configurable registered buffer for DDR2 RDIMM applications
SSTUH32864EC,518	NXP	获取价格	SSTUH32864 - 1.8 V high output drive configurable registered buffer for DDR2 RDIMM applica
SSTUH32864EC,551	NXP	获取价格	SSTUH32864 - 1.8 V high output drive configurable registered buffer for DDR2 RDIMM applica
SSTUH32864EC,557	NXP	获取价格	SSTUH32864 - 1.8 V high output drive configurable registered buffer for DDR2 RDIMM applica
SSTUH32864EC/G	NXP	获取价格	1.8 V high output drive configurable registered buffer for DDR2 RDIMM applications
SSTUH32864EC/G,551	NXP	获取价格	SSTUH32864 - 1.8 V high output drive configurable registered buffer for DDR2 RDIMM applica

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