S1K50000 Epson Electronics America, Inc., S1K50000 Datasheet - Page 40

• Manufacturer Part Number: S1K50000
• Description: Design Guide S1k50000 Series
• Manufacturer: Epson Electronics America, Inc.

3.2 Input/Output-Buffer Configuration with a Single Power Supply
3.2.1 Input/Output-Buffer Configuration with a Single Power Supply
3.2.1.1 Input-Buffer Configuration with a Single Power Supply
STANDARD CELL S1K50000 SERIES
DESIGN GUIDE
When input/output buffers with a single power supply are used, the power-supply voltage is
either 3.3 V or 2.0 V (input/output buffers cannot be used at 5.0 V).
Note: When
Note: When
XIBC
XIBCP
XIBCD
XIBH
XIBHP
XIBHD
XIBPB
XIBPBP
XIBPBD
XIBC
XIBCP
XIBCD
XIBH
XIBHP
XIBHD
Cell Name
Cell Name
value is 1 or 2, the pull-up/pull-down resistance values correspond to 1:50 k , 2:100 k respectively.
value is 1 or 2, the pull-up/pull-down resistance values correspond to 1:120 k , 2:240 k respectively.
LVTTL Schmitt
LVTTL Schmitt
LVTTL Schmitt
CMOS Schmitt
CMOS Schmitt
CMOS Schmitt
Input Level
Input Level
PCI-3V
PCI-3V
PCI-3V
CMOS
CMOS
CMOS
LVTTL
LVTTL
LVTTL
Table 3-1-1 Input Buffers
Table 3-1-2 Input Buffers
Chapter 3: Types of Input/Output Buffers and Usage Precautions
Function
Function
EPSON
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
With or without pull-up/pull-down resistors
With or without pull-up/pull-down resistors
Pull-down resistor (120 k , 240 k )
Pull-down resistor (120 k , 240 k )
Pull-down resistor (50 k , 100 k )
Pull-down resistor (50 k , 100 k )
Pull-down resistor (50 k , 100 k )
Pull-up resistor (120 k , 240 k )
Pull-up resistor (120 k , 240 k )
Pull-up resistor (50 k , 100 k )
Pull-up resistor (50 k , 100 k )
Pull-up resistor (50 k , 100 k )
Without
Without
Without
Without
Without
(V
(V
DD
DD
= 3.3 V)
= 2.0 V)
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