emc163sp16k Emlsi Inc., emc163sp16k Datasheet - Page 25

• Manufacturer Part Number: emc163sp16k
• Description: 1mx16 Bit Cellularram Ad-mux
• Manufacturer: Emlsi Inc.

Drive Strength (BCR[5:4]) Default = Outputs Use Half-Drive Strength
The output driver strength can be altered to full, one-half, or one-quarter strength to adjust for different data bus loading scenarios. The
reduced-strength options are intended for stacked chip (Flash + CellularRAM) environments when there is a dedicated memory bus.
The reduced-drive-strength option minimizes the noise generated on the data bus during READ operations. Full output drive strength
should be selected when using a discrete CellularRAM device in a more heavily loaded data bus environment. Outputs are configured
at half-drive strength during testing. See Table 4 for additional information.
Table 4: Drive Strength
BCR[5]
0
0
1
1
BCR[4]
0
1
0
1
Drive Strength
(default)
Full
1/2
1/4
Impedance Typ (Ω )
25
25~30
100
50
Reserved
1Mx16 CellularRAM AD-MUX
Use Recommendation
104 MHz at light load
CL = 15pF or lower
CL = 30pF to 50pF
CL = 15pF to 30pF
EMC163SP16K