SSTUB32872AHMLF IDT, Integrated Device Technology Inc, SSTUB32872AHMLF Datasheet

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SSTUB32872AHMLF

Manufacturer Part Number
SSTUB32872AHMLF
Description
IC REGIST BUFF 28BIT DDR2 96-BGA
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet

Specifications of SSTUB32872AHMLF

Logic Type
Registered Buffer for DDR2
Supply Voltage
1.7 V ~ 1.9 V
Number Of Bits
28
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
96-BGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
28-Bit Registered Buffer for DDR2
Recommended Application:
Product Features:
Functionality Truth Table
1222F—3/13/07
ADVANCE INFORMATION documents contain information on products in the formative or design phase development. Characteristic data and other specifications are design goals.
ICS reserves the right to change or discontinue these products without notice. Third party brands and names are the property of their respective owners.
RESET
L
DDR2 Memory Modules
Provides complete DDR DIMM solution with
ICS98ULPA877A, ICS97ULP877, or IDTCSPUA877A
Optimized for DDR2 400/533/667 JEDEC 4 Rank
VLP DIMMS
28-bit 1:1 registered buffer with parity check
functionality
Supports SSTL_18 JEDEC specification on data
inputs and outputs
Supports LVCMOS switching levels on RESET input
50% more dynamic driver strength than standard
SSTU32864
Low voltage operation
V
Available in 96 BGA package
H
H
H
H
H
H
H
H
H
H
H
H
DD
= 1.7V to 1.9V
floating
DCS0
X or
H
H
H
H
H
H
L
L
L
L
L
L
Integrated
Circuit
Systems, Inc.
floating
In puts
X or
DCS1
L
L
H
H
H
H
H
H
L
L
L
L
floating
L or H
L or H
L or H
L or H
X or
CK
floating
L or H
L or H
L or H
L or H
X or
CK
DODTn,
DCK En
floating
X or
Dn,
H
X
H
X
H
X
H
X
L
L
L
L
Qn
Q
Q
Q
Q
Q
Q
L
H
L
H
L
H
L
0
0
0
0
0
0
Outputs
Pin Configuration
QCS
Q
Q
Q
Q
H
H
H
H
L
L
L
L
L
0
0
0
0
QODT,
QCKE
Q
Q
Q
Q
L
L
H
L
H
L
H
L
H
0
0
0
0
M
A
B
C
D
E
F
G
H
K
L
N
P
R
T
J
96 Ball BGA
ICSSSTUB32872A
(Top View)
1
Advance Information
2
3
4
5
6

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SSTUB32872AHMLF Summary of contents

Page 1

Integrated Circuit Systems, Inc. 28-Bit Registered Buffer for DDR2 Recommended Application: • DDR2 Memory Modules • Provides complete DDR DIMM solution with ICS98ULPA877A, ICS97ULP877, or IDTCSPUA877A • Optimized for DDR2 400/533/667 JEDEC 4 Rank VLP DIMMS Product Features: • 28-bit ...

Page 2

Ball Assignments 1222F—3/13/07 28 bit 1:1 Register DCKE0 D0 V QCKE0 V DD REF DCKE1 D1 GND GND Q0 D2 DODT1 ...

Page 3

General Description This 28-bit 1:1 registered buffer with parity is designed for 1.7V to 1.9V V All clock and data inputs are compatible with the JEDEC standard for SSTL_18. The control inputs are LVCMOS. All outputs are 1.8 V CMOS ...

Page 4

Ball Assignment Signal Group Signal Name Ungated inputs DCKE0, DCKE1, DODT0, DODT1 Chip Select D0 ... D21 gated inputs Chip Select DCS0 , DCS1 inputs Re-driven Q0...Q21, QCS 0-1, outputs QCKE0-1, QODT0-1 Parity input PARIN Parity error PTYERR output Clock ...

Page 5

Block Diagram VREF PARIN D0 D21 DCS0 DCS1 2 DCKE0, DCKE1 DODT0, 2 DODT1 RESET CK CK 1222F—3/13/07 (CS ACTIVE) PARITY D Q GENERATOR 22 AND R CHECKER ...

Page 6

Parity Functionality Block Diagram PARIN CLOCK 1222F—3/13/ (1) This function holds the error for two D cycles. See functional description and timing diagram. 6 ICSSSTUB32872A Advance Information Qn PTYERR LATCHING AND RESET FUNCTION ...

Page 7

Register Timing RESET DCSn ACT ( PARIN PTYERR (1) After RESET is switched from LOW to HIGH, all data and PARIN input signals must be set and held LOW for a ...

Page 8

Register Timing RESET DCSn PDM , t PDMSS Qn PARIN PTYERR Unknown input e vent 1222F—3/13/ Output ...

Page 9

Register Timing RESET DCSn (1) CK ( (1) PARIN PTYERR (1) After Reset is switched from HIGH to LOW, all data and clock input signals must be set and held at valid logic levels (not floating) ...

Page 10

Absolute Maximum Ratings Storage Temperature . . . . . . . . . . . . . . . . . . . . –65°C to +150°C Supply Voltage . . . . . . . . . . ...

Page 11

Electrical Characteristics - 70° 2.5 +/-0.2V SYMBOL PARAMETERS All Inputs Standby (Static) RESET = GND ...

Page 12

Timing Requirements (over recommended operating free-air temperature range, unless otherwise noted) SYMBOL PARAMETERS f Clock frequency clock t Pulse duration W t Differential inputs active time ACT t Differential inputs inactive time INACT t S Setup time Hold time t ...

Page 13

CK Inputs Test Point R L Test Point VCMOS RST Inp act I DD (see 10% Note 2) VOLTAGE AND CURRENT WAVEFORMS INPUTS ACTIVE AND INACTIVE TIMES t w Inpu t V ICR VOLTAGE ...

Page 14

LOAD CIRCUIT – HIGH-TO-LOW SLEW-RATE MEASUREMENT Output VOLTAGE WAVEFORMS – HIGH-TO-LOW SLEW-RATE MEASUREMENT LOAD CIRCUIT – LOW-TO-HIGH SLEW-RATE MEASUREMENT Output VOLTAGE WAVEFORMS – LOW-TO-HIGH SLEW-RATE MEASUREMENT Figure 7 — Output Slew-Rate Measurement Information (V Notes includes probe and ...

Page 15

Test circuits and switching waveforms (cont’d) 3.3 Error output load circuit and voltage measurement information (V All input pulses are supplied by generators having the following characteristics: PRR Ω input slew rate = 1 V/ns ...

Page 16

Test circuits and switching waveforms (cont’d) 3.4 Partial-parity-out load circuit and voltage measurement information (V All input pulses are supplied by generators having the following characteristics: PRR Ω input slew rate = 1 V/ns ± ...

Page 17

A1 D TOP VIEW E ALL DIMENSIONS IN MILLIMETERS Min/Max 13.50 Bsc 5.50 Bsc 1.20/1.40 0.80 Bsc 11.50 Bsc 5.00 Bsc 1.00/1.20 0.65 Bsc Note: Ball grid total indicates maximum ball count for package. Lesser quantity may ...

Page 18

Revision History Rev. Issue Date Description A 5/2/2006 Initial Release. Electrical table, Ci Data input max changed from 3.5 to 5.0, CLK max B 12/12/2006 changed from 3 to 3.8 Timing table, ts Data before CK changed from 0.5 to ...

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