Contents
Features
Logic Block Diagram1, 2
CY14B104L, CY14B104N
Functional Description
Figure 1. Pin Diagram - 48 FBGA
Figure 2. Pin Diagram - 44 Pin TSOP
Pinouts
44 - TSOP
Figure 3. Pin Diagram - 54 Pin TSOP II
Output Enable, Active LOW. The active LOW
Byte High Enable, Active LOW. Controls DQ15 - DQ8
Byte Low Enable, Active LOW. Controls DQ7 - DQ0
Figure 4. AutoStore Mode
Device Operation
SRAM Read
SRAM Write
Hardware RECALL Power Up
Table 1. Mode Selection
Power
Software STORE
Table 1. Mode Selection continued
Preventing AutoStore
Data Protection
Noise Considerations
DC Electrical Characteristics
Maximum Ratings
Operating Range
Range
Data Retention and Endurance
Capacitance
Thermal Resistance
AC Test Conditions
AC Switching Characteristics
Switching Waveforms
Parameters
20 ns
CY14B104L, CY14B104N
Figure 7. SRAM Read Cycle #2 CE and OE Controlled 3, 14
Figure 8. SRAM Write Cycle #1 WE Controlled3, 17, 18
+ Feedback
Figure 9. SRAM Write Cycle #2 CE Controlled 3, 17, 18
Figure 10. SRAM Write Cycle #3 BHE and BLE Controlled3, 17, 18
CY14B104L, CY14B104N
+ Feedback
AutoStore/Power Up RECALL
Figure 11. AutoStore or Power Up RECALL23
CY14B104L/CY14B104N
Switching Waveforms
Figure 13. Autostore Enable / Disable Cycle
Software Controlled STORE/RECALL Cycle
Figure 12. CE and OE Controlled Software STORE/RECALL Cycle26
Switching Waveforms
Hardware STORE Cycle
Hardware STORE Pulse Width
Hardware STORE LOW to STORE Busy
Figure 14. Hardware STORE Cycle21
For x8 Configuration
For x16 Configuration
Truth Table For SRAM Operations
Inputs/Outputs2
Diagram
Ordering Information
Speed
Ordering Code
Ordering Information continued
Diagram
CY14B104L, CY14B104N
Speed
CY 14 B 104 L - ZS P 20 X C T
Part Numbering Nomenclature
CY14B104L, CY14B104N
Package Diagrams
Figure 16. 44-Pin TSOP II
CY14B104L, CY14B104N
+ Feedback
Package Diagrams continued
Figure 17. 48-Ball FBGA - 6 mm x 10 mm x 1.2 mm
CY14B104L, CY14B104N
+ Feedback
Figure 18. 54-Pin TSOP II
Package Diagrams continued
CY14B104L, CY14B104N
Page 21 of
Document History Page
Document Title CY14B104L/CY14B104N 4 Mbit 512K x 8/256K x 16 nvSRAM
Document Number
ECN No
CY14B104L, CY14B104N
Document Title CY14B104L/CY14B104N 4 Mbit 512K x 8/256K x 16 nvSRAM
Document Number
ECN No
CY14B104L, CY14B104N
Document Title CY14B104L/CY14B104N 4 Mbit 512K x 8/256K x 16 nvSRAM
Document Number
ECN No
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