S1K50000 Epson Electronics America, Inc., S1K50000 Datasheet - Page 107

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

Chapter 9: Precautions on the Use of Dual Power Supplies
9.3.1 LV
9.3.1.1 LV
102
The LV
that accepts the input of 3.3 V (or 2.0 V) signals, an output buffer that outputs 3.3-V (or 2.0-V)
amplitude signals, and a bidirectional buffer that accepts the input of 3.3-V (or 2.0-V) signals
and outputs 3.3-V (or 2.0-V) amplitude signals. The LV
HV
flows into the internal protective diode of the LV
degrade. Therefore, do not apply voltages higher than LV
This input buffer consists only of input cells. Several types of LV
available, as listed in Tables 9-1-1 and 9-1-2.
Note: When
Note: When
XLIBC
XLIBCP
XLIBCD
XLIBH
XLIBHP
XLIBHD
XLIBPB
XLIBPBP
XLIBPBD
XLIBC
XLIBCP
XLIBCD
XLIBH
XLIBHP
XLIBHD
Cell Name
Cell Name
DD
-system signals, because if such a high-voltage signal is fed in, an excessive current
DD
DD
DD
-system input/output buffers are available in several types, including an input buffer
-System Input/Output Buffers
-System Input Buffers
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.
CMOS Schmitt
CMOS Schmitt
CMOS Schmitt
LVTTL Schmitt
LVTTL Schmitt
LVTTL Schmitt
Input Level
Input Level
PCI-3V
PCI-3V
PCI-3V
CMOS
CMOS
CMOS
LVTTL
LVTTL
LVTTL
Table 9-1-1 LV
Table 9-1-2 LV
Fuction
Fuction
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
EPSON
DD
DD
-System Input Buffers
-System Input Buffers
DD
-system buffer, causing its quality to
With or without a pull-up/down resistor
With or without a pull-up/down resistor
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 )
DD
-system input buffers cannot accept
DD
.
DD
Without
Without
Without
Without
Without
STANDARD CELL S1K50000 SERIES
-system input buffers are
DESIGN GUIDE
(LV
(LV
DD
DD
= 3.3 V)
= 2.0 V)