CY2313ANZ Cypress Semiconductor Corporation., CY2313ANZ Datasheet

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CY2313ANZ

Manufacturer Part Number
CY2313ANZ
Description
13 Output, 3.3v Sdram Buffer For Desktop Pcs With 3 Dimms
Manufacturer
Cypress Semiconductor Corporation.
Datasheet

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Part Number:
CY2313ANZSC-1
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CY2313ANZSXC-1
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1CY2310NZCY2310
NZCY2313ANZ
Pentium is a registered trademark of Intel Corporation.
Features
Cypress Semiconductor Corporation
Document #: 38-07144 Rev. *B
• One input to 13 output buffer/driver
• Supports up to three SDRAM DIMMs
• One additional outputs for feedback
• Serial interface for output control
• Low skew outputs
• Up to 100-MHz operation
• Multiple V
• Low EMI outputs
• 28-pin SOIC (300-mil) package
• 3.3V operation
Block Diagram
SCLOCK
BUF_IN
SDATA
DD
and V
SS
pins for noise reduction
Serial Interface
Decoding
3901 North First Street
13 Output, 3.3V SDRAM Buffer for
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM4
SDRAM5
SDRAM6
SDRAM7
SDRAM8
SDRAM9
SDRAM10
SDRAM11
SDRAM12
Functional Description
The CY2313ANZ is a 3.3V buffer designed to distribute
high-speed clocks in desktop PC applications. The part has 13
outputs, 12 of which can be used to drive up to three SDRAM
DIMMs, and the remaining can be used for external feedback
to a PLL. The device operates at 3.3V and outputs can run up
to 100 MHz, thus making it compatible with Pentium
cessors. The CY2313ANZ can be used in conjunction with the
CY2280, CY2281, CY2282 or similar clock synthesizer for a
complete Pentium II motherboard solution.
The CY2313ANZ also includes a serial interface which can
enable or disable each output clock. On power-up, all output
clocks are enabled.
Desktop PCs with 3 DIMMs
San Jose
SDRAM12
SDRAM0
SDRAM1
SDRAM2
SDRAM3
SDRAM4
SDRAM5
BUF_IN
SDATA
V
DDIIC
V
V
V
V
Pin Configuration
DD
DD
SS
SS
CA 95134
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Top View
28 SOIC
Revised July 09, 2007
CY2313ANZ
28
27
26
25
24
23
22
21
20
19
18
17
16
15
V
SDRAM11
SDRAM10
V
V
SDRAM9
SDRAM8
V
V
SDRAM7
SDRAM6
V
V
SCLK
408-943-2600
DD
SS
DD
SS
DD
SS
SSIIC
®
II pro-
[+] Feedback

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CY2313ANZ Summary of contents

Page 1

... DIMMs, and the remaining can be used for external feedback to a PLL. The device operates at 3.3V and outputs can run up to 100 MHz, thus making it compatible with Pentium cessors. The CY2313ANZ can be used in conjunction with the CY2280, CY2281, CY2282 or similar clock synthesizer for a complete Pentium II motherboard solution. ...

Page 2

... The Serial bits will be read by the clock driver in the following order: Byte 0 - Bits Byte 1 - Bits Byte N - Bits • Reserved and unused bits should be programmed to “0” • Serial interface address for the CY2313ANZ is ...

Page 3

... – Unloaded outputs, 100 MHz Loaded outputs, 100 MHz Unloaded outputs, 66.67 MHz Loaded outputs, 66.67 MHz BUF_IN All other inputs CY2313ANZ ° ° +150 C ° C Min. Max. Unit 3.135 3.465 V ° ...

Page 4

... Test Conditions Measured at 1.5V Measured between 0.4V and 2.4V Measured between 2.4V and 0.4V All outputs equally loaded [3] Input edge greater than 1 V/ns [3] Input edge greater than 1 V/ns [3] Input edge greater than 1 V/ns [3] Input edge greater than 1 V/ns 1.5V 3. CY2313ANZ Min. Typ. Max. Unit 100 MHz 45.0 50.0 55.0 % 0.9 1.5 4.0 V/ns 0.9 1.5 4.0 V/ns – ...

Page 5

... Switching Waveforms (continued) SDRAM Buffer LH and HL Propagation Delay INPUT OUTPUT t 6 SDRAM Buffer Enable and Disable Times OE Three-State Active OUTPUTS t 8 Test Circuit 0.1 μF Document #: 38-07144 Rev OUTPUTS C GND CY2313ANZ CLK out LOAD Page [+] Feedback ...

Page 6

... SS CY2313 28 PIN SOIC CY2313A: 28-PIN SOIC from the clock generator V DD Package Type 28-Pin SOIC Commercial 28-Pin SOIC Commercial 28-Pin SOIC Tape and Reel Commercial CY2313ANZ R s SDRAM ( 0-12 DECOUP LING CAPACITOR OPTIONAL EMI-R EDUCING CAP ACI TORS SERIES TERMINATING RESISTORS s island ...

Page 7

... The inclusion of Cypress Semiconductor products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress Semiconductor against all charges. 28-Lead (300-Mil) Molded SOIC S21 CY2313ANZ Page [+] Feedback ...

Page 8

... Document History Page Document Title: CY2313ANZ 13 Output, 3.3V SDRAM Buffer for Desktop PCs with 3 DIMMs Document Number: 38-07144 Issue Orig. of REV. ECN NO. Date Change ** 110253 11/18/01 *A 121831 12/14/02 *B 1244583 See ECN Document #: 38-07144 Rev. *B Description of Change DSG Change from Spec number: 38-00692 to 38-07144 RBI ...

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