cy26121zit Cypress Semiconductor Corporation., cy26121zit Datasheet - Page 2

• Manufacturer Part Number: cy26121zit
• Description: Packetclock Spread Spectrum Clock Generator
• Manufacturer: Cypress Semiconductor Corporation.

Document #: 38-07350 Rev. **
Pin Description
Absolute Maximum Conditions
Supply Voltage (V
DC Input Voltage...................................... –0.5V to V
Storage Temperature
(Non-condensing) .......................................–55 C to +125 C
Junction Temperature ................................ –40 C to +125 C
Recommended Operating Conditions
Crystal Specification
XIN
VDD
AVDD
CLKSEL
CLKSEL
AVSS
VSSL
CLK(A:D)
SSON
VDDL
VSS
REF
NC
XOUT
V
V
T
T
C
F
CR
CR
ESR
Notes:
1.
2.
A
A
DD,
DDL
ref
LOAD
load
load
Parameter
Parameter
Float XOUT if XIN is externally driven.
A fundamental parallel resonant crystal must be used
Name
AV
[1]
DD
DD
1
2
3
4 (orig., -11,-3,-31)
4 (-2, -21)
5
6
7,8,9,12
10
11
13
14
15
16
, AV
Supply voltage
Supply voltage for CLK (A-D)
Ambient temperature (commercial temp. grade)
Ambient Temperature (industrial temp grade)
Max. output load capacitance
Reference frequency
Crystal load capacitance (original, -2, -3)
Crystal load capacitance (-11,-21,-31)
Equivalent series resistance
Pin Number
DD
, V
[2]
DDL
) ...................–0.5 to +7.0V
Description
Reference input or crystal input
3.3V voltage supply
3.3V analog voltage
0 = 66.66MHz out, 1 = 33.33 MHz out. Weak pull-up.
0 = 33.33MHz out, 1 = 25 MHz out. Weak pull-up.
Analog ground
CLK ground
Clock outputs at V
Spread Spectrum enable pin 0 = SS off; 1 = SS on. Weak pull-up.
3.3V clock voltage supply
Ground
Reference output at V
No Connect
Crystal Output
Name
DD
+ 0.5
DDL
DD
level
Data Retention @ Tj = 125 C................................> 10 years
Package Power Dissipation...................................... 350 mW
Static Discharge Voltage.......................................... > 2000V
(per MIL-STD-883, Method 3015)
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
level
3.135
3.135
Min.
Min.
-40
Description
0
Typ.
3.30
3.30
Typ
25
15
6
3.465
3.465
Max.
Max.
70
85
15
50
CY26121
Page 2 of 6
MHz
Unit
Unit
° C
° C
pF
pF
pF
V
V
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