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S1X60000 Datasheet, PDF (65/358 Pages) Epson Company – EMBEDDED ARRAY
Chapter 5 Types of Input/Output Buffers and Their Use (XF Type)
Cell Name*1
XFHIBC
XFHIBCP#
XFHIBCD#
XFHIBT
XFHIBTP#
XFHIBTD#
XFHIBH
XFHIBHP#
XFHIBHD#
XFHIBS
XFHIBSP#
XFHIBSD#
XFHIBPB
XFHIBPBP#
XFHIBPBD#
Table 5-2 HVDD Input Buffers List
Input Level
CMOS
CMOS
CMOS
LVTTL
LVTTL
LVTTL
CMOS Schmitt
CMOS Schmitt
CMOS Schmitt
LVTTL Schmitt
LVTTL Schmitt
LVTTL Schmitt
PCI-3V
PCI-3V
PCI-3V
Whether Pull-up/Pull-down Resistors are Included
None
Pull-up resistor
Pull-down resistor
None
Pull-up resistor
Pull-down resistor
None
Pull-up resistor
Pull-down resistor
None
Pull-up resistor
Pull-down resistor
None
Pull-up resistor
Pull-down resistor
Notes *1: The # denotes 1 or 2, with the pull-up/pull-down resistance values corresponding to Type 1 and
Type 2, respectively (for details, refer to Table 5-1).
(2) LVDD input buffers
The input buffers are configured using only input cells. Table 5-4 lists the LVDD input
buffers.
Table 5-3 Rated Pull-up/Pull-down Resistance Values at Each Voltage
Type of Pull-up/Pull-down Resistor
Resistance Value
LVDD = 2.5 V
LVDD = 2.0 V
Unit
Type 1
50
70
kΩ
Type 2
100
140
kΩ
Cell Name*1
XFLIBC
XFLIBCP#
XFLIBCD#
XFLIBH
XFLIBHP#
XFLIBHD#
Table 5-4 LVDD Input Buffers List
Input Level
CMOS
CMOS
CMOS
CMOS Schmitt
CMOS Schmitt
CMOS Schmitt
Whether Pull-up/Pull-down Resistors are Included
None
Pull-up resistor
Pull-down resistor
None
Pull-up resistor
Pull-down resistor
Notes *1: The # denotes 1 or 2, with the pull-up/pull-down resistance values corresponding to Type 1 and
Type 2, respectively (for details, refer to Table 5-3).
56
EPSON
EMBEDDED ARRAY S1X60000 SERIES
DESIGN GUIDE