CY2309NZ Datasheet, PDF (1/5 Pages) Cypress Semiconductor – Nine-Output 3.3V Buffer

CY2309NZ
Nine-Output 3.3V Buffer
Features
• One-input to nine-output buffer/driver
• Supports two DIMMs or four SO-DIMMs with one
additional output for feedback to an external or chipset
PLL
• Low power consumption for mobile applications
— Less than 32 mA at 66.6 MHz with unloaded outputs
• 8.7-ns Input-Output delay
• Buffers all frequencies from DC to 133.33 MHz
• Output-output skew less than 250 ps
• Multiple V_DD and V_SS pins for noise and electromag-
netic interference (EMI) reduction
• Space-saving 16-pin 150-mil SOIC package
• 3.3V operation
• Industrial temperature available
Functional Description
The CY2309NZ is a low-cost buffer designed to distribute
high-speed clocks in mobile PC systems and desktop PC
systems with SDRAM support. The part has nine outputs,
eight of which can be used to drive 2 DIMMs or 4 SO-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
133.33 MHz.
The CY2309NZ is designed for low EMI and power optimi-
zation. It has multiple V_SS and V_DD pins for noise optimization
and consumes less than 32 mA at 66.6 MHz, making it ideal
for the low-power requirements of mobile systems. It is
available in an ultra-compact 150-mil 16-pin SOIC package.
Block Diagram
Pin Configuration
BUF_IN
Pin Description for CY2309NZ
Pin
Signal
4, 8, 13
5, 9, 12
V_DD
GND
1
BUF_IN
2, 3, 6, 7, 10, 11, OUTPUT [1:9]
14, 15, 16
OUTPUT1
OUTPUT2
OUTPUT3
OUTPUT4
OUTPUT5
OUTPUT6
OUTPUT7
OUTPUT8
OUTPUT9
3.3V Digital Voltage Supply
Ground
Input Clock
Outputs
BUF_IN
OUTPUT1
OUTPUT2
V_DD
GND
OUTPUT3
OUTPUT4
V_DD
16 SOIC
Top View
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
OUTPUT9
OUTPUT8
OUTPUT7
V_DD
GND
OUTPUT6
OUTPUT5
GND
Description
Cypress Semiconductor Corporation • 3901 North First Street • San Jose, CA 95134 • 408-943-2600
Document #: 38-07182 Rev. *C
Revised February 24, 2004