CY7C1550V18-375BZC Cypress Semiconductor Corp, CY7C1550V18-375BZC Datasheet - Page 7

• Manufacturer Part Number: CY7C1550V18-375BZC
• Description: IC SRAM 72MBIT 375MHZ 165TFBGA
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1550V18-375BZC

• Format - Memory: RAM
• Memory Type: SRAM - Synchronous, DDR II
• Memory Size: 72M (2M x 36)
• Speed: 375MHz
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.9 V
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 165-TFBGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

Pin Definitions
Document Number: 001-06550 Rev. *D
ZQ
DOFF
TDO
TCK
TDI
TMS
NC
NC/72M
NC/144M
NC/288M
V
V
V
V
REF
DD
SS
DDQ
Pin Name
Power Supply Power Supply Inputs to the Core of the Device.
Power Supply Power Supply Inputs for the Outputs of the Device.
Reference
Ground
Output
Input
Input
Input
Input
Input
Input
N/A
N/A
N/A
N/A
(continued)
IO
Output Impedance Matching Input. This input is used to tune the device outputs to the system data
bus impedance. CQ, CQ, and Q
connected between ZQ and ground. Alternatively, this pin is connected directly to V
the minimum impedance mode. This pin is not connected directly to GND or left unconnected.
DLL Turn Off, Active LOW. Connecting this pin to ground turns off the DLL inside the device. The
timing in the DLL turned off operation is different from that listed in this datasheet. For normal
operation, this pin is connected to a pull up through a 10 Kohm or less pull up resistor. The device
behaves in DDR-I mode when the DLL is turned off. In this mode, the device is operated at a
frequency of up to 167 MHz with DDR-I timing.
TDO for JTAG.
TCK Pin for JTAG.
TDI Pin for JTAG.
TMS Pin for JTAG.
Not Connected to the Die. Is tied to any voltage level.
Not Connected to the Die. Is tied to any voltage level.
Not Connected to the Die. Is tied to any voltage level.
Not Connected to the Die. Is tied to any voltage level.
Reference Voltage Input. Static input is used to set the reference level for HSTL inputs, outputs,
and AC measurement points.
Ground for the Device.
[x:0]
output impedance are set to 0.2 x RQ, where RQ is a resistor
Pin Description
CY7C1546V18
CY7C1557V18
CY7C1548V18
CY7C1550V18
DDQ
and enables
Page 7 of 27
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