W215B Datasheet, PDF (11/14 Pages) Cypress Semiconductor – Uses external 14.318-MHz crystal

PRELIMINARY
W215B
48-/24-MHz Clock Output (Test Load: R = 33Ω; C = 22 pF)
Parameter
Description
m/n
PLL Ratio
t_R
Output Rise Edge Rate
t_F
Output Fall Edge Rate
t_D
Duty Cycle
f_ST
Frequency Stabilization
from Power-up (cold start)
Z_o
AC Output Impedance
Test Condition/Comments
Measured on rising and falling edge at 1.5V
Assumes full supply voltage reached within 1 ms
from power-up. Short cycles exist prior to fre-
quency stabilization.
Average value during switching transition. Used
for determining series termination value.
CPU = 100 MHz
Min. Typ. Max.
57/17
0.5
2
0.5
2
45
50
55
3
25
Unit
V/ns
V/ns
%
ms
Ω
Ordering Information
Ordering Code
Package
Name
W215B
X
Package Type
48-pin TSSOP (6.1 mm)
Document #: 38-07222 Rev. *A*
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