DS670 Datasheet, PDF (6/11 Pages) Xilinx, Inc – Low-power CMOS EPROM process

QPRO Family of XC1700E Configuration PROMs
Standby Mode
The PROM enters a low-power standby mode whenever CE is asserted High. The output remains in a high impedance state
regardless of the state of the OE input.
Programming
The devices can be programmed on programmers supplied by Xilinx or qualified third-party vendors. The user must ensure
that the appropriate programming algorithm and the latest version of the programmer software are used. The wrong choice
can permanently damage the device.
Table 4: Truth Table for XC1700 Control Inputs
Control Inputs
RESET⁽¹⁾
CE
Internal Address
Inactive
Low
If address  TC: increment
If address > TC: don’t change⁽²⁾
Active
Low
Held reset
Inactive
High
Not changing
Active
High
Held reset
DATA
Active
High-Z
High-Z
High-Z⁽³⁾
High-Z⁽³⁾
Outputs
CEO
High
Low
High
High
High
I_CC
Active
Reduced
Active
Standby
Standby
Notes:
1. The XC1700 RESET input has programmable polarity
2. TC = Terminal Count = highest address value with valid data.
3. Pull DATA pin to GND or V_CC to meet I_CCS standby current.
Note: Always tie the V_PP pin to V_CC in your application. Never leave V_PP floating.
DS670 (v1.0) December 3, 2010
www.xilinx.com
Product Specification
6