STPCC4 STMicroelectronics, STPCC4 Datasheet - Page 36

• Manufacturer Part Number: STPCC4
• Description: STPC CONSUMER-II DATASHEET - X86 CORE PC COMPATIBLE INFORMATION APPLIANCE SYSTEM-ON-CHIP
• Manufacturer: STMicroelectronics

ELECTRICAL SPECIFICATIONS
4.5. AC CHARACTERISTICS
This section lists the AC characteristics of the
STPC interfaces including output delays, input
setup requirements, input hold requirements and
output float delays. These measurements are
based on the measurement points identified in
Figure 4-1 and Figure 4-2. The rising clock edge
reference level VREF and other reference levels
Note: Refer to Figure 4-1.
36/93
CLK:
OUTPUTS:
INPUTS:
LEGEND:
Figure 4-1. Drive Level and Measurement Points for Switching Characteristics
Table 4-9. Drive Level and Measurement Points for Switching Characteristics
Symbol
V
V
V
REF
IHD
ILD
A - Maximum Output Delay Specification
B - Minimum Output Delay Specification
C - Minimum Input Setup Specification
D - Minimum Input Hold Specification
Valid
Output n
B
A
Release 1.5 - January 29, 2002
MIN
Value
1.5
2.5
0.0
MAX
V
are shown in Table 4-9 below. Input or output
signals must cross these levels during testing.
Figure 4-1 shows output delay (A and B) and input
setup and hold times (C and D). Input setup and
hold times (C and D) are specified minimums,
defining the smallest acceptable sampling window
a synchronous input signal must be stable for
correct operation.
Ref
C
Valid
Output n+1
Valid
Input
Tx
D
Units
V
V
V
V
V
V
IHD
Ref
ILD
V
V
V
Ref
ILD
IHD