CY7C1568V18-400BZXC Cypress Semiconductor Corp, CY7C1568V18-400BZXC Datasheet - Page 7

• Manufacturer Part Number: CY7C1568V18-400BZXC
• Description: IC SRAM 72MBIT 400MHZ 165TFBGA
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C1568V18-400BZXC

• Format - Memory: RAM
• Memory Type: SRAM - Synchronous, DDR II
• Memory Size: 72M (2M x 36)
• Speed: 400MHz
• 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: Lead free / RoHS Compliant

Pin Definitions
Document Number: 001-06551 Rev. *E
ZQ
DOFF
TDO
TCK
TDI
TMS
NC
NC/144M
NC/288M
V
V
V
V
Pin Name
REF
DD
SS
DDQ
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
IO
(continued)
Output Impedance Matching Input. This input is used to tune the device outputs to the system data bus
impedance. CQ, CQ, and Q
between ZQ and ground. Alternatively, this pin is connected directly to V
impedance mode. This pin is not connected directly to GND or is 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.
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 connected
Pin Description
CY7C1566V18, CY7C1577V18
CY7C1568V18, CY7C1570V18
DDQ
that enables the minimum
Page 7 of 28
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