pca9504a NXP Semiconductors, pca9504a Datasheet - Page 17

• Manufacturer Part Number: pca9504a
• Description: Glue Chip 4
• Manufacturer: NXP Semiconductors

1. Nominal value timings with tolerances are listed in the DC Characteristics table for t and t1. All Hi-Z outputs are shown as 1’s or HIGH in the
Philips Semiconductors
FLUSH OUT* / INIT OUT* CIRCUIT
NOTE:
2004 May 11
1
2
3
4
5
6
Glue chip 4
following diagrams.
Case
VCCP
1
1
X
X
0
0
A20M*
50
100
falling edge
falling edge
1
1
falling edge
falling edge
GPO FLUSH
CACHE*
ICH_A20M*
ICH_INIT*
GPO_FLUSH_CACHE*
VCCP_VREF
Figure 5. Block diagram for FLUSH_OUT*/INIT_OUT* circuit
0
1
0
1
1
0
INIT*
1 F
0 (for t1)
0 (for t1)
Hi-Z
Hi-Z
Hi-Z
Hi-Z
FLUSH OUT
CPU*
17
GLUE CHIP
0 (for t1)
0 (for t1)
Hi-Z
Hi-Z
Hi-Z
Hi-Z
FLUSH OUT
FWH*
0, Hi-Z, then 0 (delayed by t1-t, then active for 2*t)
Hi-Z, 0 (delayed by t1-t, then active for 2*t)
0
Hi-Z
Hi-Z
0
1 k
H_FLUSH_OUT_FWH*
H_FLUSH_OUT_CPU*
V_VCCP
H_INIT_OUT*
1 k
INIT OUT*
VCC3
1 k
PCA9504A
CPU
FWH
SW00584
Product data