Datasheet

ALERT# output Drive Characteristic
A functional representation of the output buffer is shown in the figure below. Output driver impedance R
ON
is
defined as follows:
R
ONPd
=
Vout
| I out |
under the condition that RONPu is off
DRAM
VSSQ
Alert Driver
Alert
I
Pd
R
ONPd
I
out
V
out
Figure 180. ALERT# output Drive Characteristic
Table 89. ALERT Driver Voltage
Resistor
Vout
Min.
Max.
Unit
Note
R
ONPd
V
OL
dc= 0.1 x V
DDQ
0.3
1.2
34Ω
1
V
OM
dc= 0.8 x V
DDQ
0.4
1.2
34Ω
1
V
OH
dc= 1.1 x V
DDQ
0.4
1.4
34Ω
1
Note 1. V
DDQ
voltage is at V
DDQ
DC. V
DDQ
DC definition is TBD.
!
!
AS4C512M8D4
Confidential
- 186 of 196 -
Rev.1.0. Aug.2019