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