S1K50000 Epson Electronics America, Inc., S1K50000 Datasheet - Page 114

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

9.3.3 HV
9.3.3.1 HV
STANDARD CELL S1K50000 SERIES
DESIGN GUIDE
The HV
that accepts the input of 5.0-V (or 3.3-V) signals, an output buffer that outputs 5.0-V (or 3.3-V)
amplitude signals, and a bidirectional buffer that accepts the input of 5.0-V (or 3.3-V) signals
and outputs 5.0-V (or 3.3-V) amplitude signals.
This input buffer consists only of input cells. The first input stage of the HV
buffer is configured with an HV
LV
before being fed into the MSI cell (internal cell area). The available types of HV
input buffers are listed in Tables 9-5-1 through 9-6-2.
Note: When
XHIBC
XHIBCP
XHIBCD
XHIBT
XHIBTP
XHIBTD
XHIBH
XHIBHP
XHIBHD
XHIBS
XHIBSP
XHIBSD
XHIBPA
XHIBPAP
XHIBPAD
Cell Name
DD
*1 signifies the cell dedicated to HV
-system circuit. As a result, HV
*1
*1
DD
*1
DD
DD
*1
*1
*1
*1
-system input/output buffers are available in several types, such as an input buffer
*1
*1
-System Input/Output Buffers
value is 1 or 2, the pull-up/pull-down resistance values correspond to 1:60 k , 2:120 k respectively.
-System Input Buffers
CMOS Schmitt
CMOS Schmitt
CMOS Schmitt
TTL Schmitt
TTL Schmitt
TTL Schmitt
Input Level
PCI-5V
PCI-5V
PCI-5V
CMOS
CMOS
CMOS
TTL
TTL
TTL
Table 9-5-1 HV
DD
-system input circuit, and the next stage is configured with an
DD
Fuction
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
Buffer
DD
of 5.0 V.
-system signals are converted into LV
EPSON
Chapter 9: Precautions on the Use of Dual Power Supplies
DD
-System Input Buffers
With or without a pull-up/down resistor
Pull-down resistor (60 k , 120 k )
Pull-down resistor (60 k , 120 k )
Pull-down resistor (60 k , 120 k )
Pull-down resistor (60 k , 120 k )
Pull-down resistor (60 k , 120 k )
Pull-up resistor (60 k , 120 k )
Pull-up resistor (60 k , 120 k )
Pull-up resistor (60 k , 120 k )
Pull-up resistor (60 k , 120 k )
Pull-up resistor (60 k , 120 k )
Without
Without
Without
Without
Without
DD
DD
-system input
-system signals
DD
-system
(HV
DD
= 5.0 V)
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