CY7C1380C
CY7C1382C
Asserting ADV LOW at clock rise will automatically increment the burst counter to the next address in the burst sequence. Both Read and Write burst operations are supported.
Interleaved Burst Address Table (MODE = Floating or VDD)
First | Second | Third | Fourth |
Address | Address | Address | Address |
A1: A0 | A1: A0 | A1: A0 | A1: A0 |
00 | 01 | 10 | 11 |
|
|
|
|
01 | 00 | 11 | 10 |
|
|
|
|
10 | 11 | 00 | 01 |
|
|
|
|
11 | 10 | 01 | 00 |
|
|
|
|
Linear Burst | Address | Table |
|
(MODE = GND) |
|
| |
First | Second | Third | Fourth |
Address | Address | Address | Address |
A1: A0 | A1: A0 | A1: A0 | A1: A0 |
00 | 01 | 10 | 11 |
|
|
|
|
01 | 10 | 11 | 00 |
|
|
|
|
10 | 11 | 00 | 01 |
|
|
|
|
11 | 00 | 01 | 10 |
|
|
|
|
Sleep Mode
The ZZ input pin is an asynchronous input. Asserting ZZ places the SRAM in a power conservation “sleep” mode. Two clock cycles are required to enter into or exit from this “sleep” mode. While in this mode, data integrity is guaranteed. Accesses pending when entering the “sleep” mode are not considered valid nor is the completion of the operation guaranteed. The device must be deselected prior to entering
the “sleep” mode. CE1, CE2, CE3, ADSP, and ADSC must remain inactive for the duration of tZZREC after the ZZ input returns LOW
.
ZZ Mode Electrical Characteristics
| Parameter |
| Description |
|
|
|
|
|
|
| Test Conditions |
|
|
| Min. |
|
| Max. |
| Unit | |||||||||||||
| IDDZZ |
| Snooze mode standby current |
|
|
| ZZ > VDD – 0.2V |
|
|
|
|
|
|
|
|
|
|
| 60mA |
| mA | ||||||||||||
| tZZS |
| Device operation to ZZ |
|
|
|
|
| ZZ > VDD – 0.2V |
|
|
|
|
|
|
|
|
|
|
| 2tCYC |
| ns | ||||||||||
| tZZREC |
| ZZ recovery time |
|
|
|
|
| ZZ < 0.2V |
|
|
|
|
|
| 2tCYC |
|
|
|
|
|
| ns | ||||||||||
| tZZI |
| ZZ Active to snooze current |
|
|
|
|
| This parameter is sampled |
|
|
|
|
|
|
|
| 2tCYC |
| ns | |||||||||||||
| tRZZI |
| ZZ Inactive to exit snooze current |
|
|
| This parameter is sampled |
|
| 0 |
|
|
|
|
|
|
| ns | |||||||||||||||
| Truth Table[ 3, 4, 5, 6, 7, 8] |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| ||
|
| Operation | Add. Used |
| CE | 1 | CE2 |
| CE | 3 | ZZ |
| ADSP |
|
| ADSC |
|
| ADV |
|
| WRITE |
|
|
| OE |
| CLK | DQ | ||||
| Deselect Cycle,Power Down | None |
| H | X |
| X | L |
| X |
| L |
| X |
|
| X |
| X |
| |||||||||||||
| Deselect Cycle,Power Down | None |
| L | L |
| X | L |
| L |
| X |
| X |
|
| X |
| X |
| |||||||||||||
| Deselect Cycle,Power Down | None |
| L | X |
| H | L |
| L |
| X |
| X |
|
| X |
| X |
| |||||||||||||
| Deselect Cycle,Power Down | None |
| L | L |
| X | L |
| H |
| L |
| X |
|
| X |
| X |
| |||||||||||||
| Deselect Cycle,Power Down | None |
| L | X |
| H | L |
| H |
| L |
| X |
|
| X |
| X |
| |||||||||||||
| Snooze Mode,Power Down | None |
| X | X |
| X | H |
| X |
| X |
| X |
|
| X |
| X |
| X | ||||||||||||
| READ Cycle, Begin Burst | External |
| L | H |
| L | L |
| L |
| X |
| X |
|
| X |
| L |
| Q | ||||||||||||
| READ Cycle, Begin Burst | External |
| L | H |
| L | L |
| L |
| X |
| X |
|
| X |
| H |
| |||||||||||||
| WRITE Cycle, Begin Burst | External |
| L | H |
| L | L |
| H |
| L |
| X |
|
| L |
| X |
| D | ||||||||||||
| READ Cycle, Begin Burst | External |
| L | H |
| L | L |
| H |
| L |
| X |
|
| H |
| L |
| Q | ||||||||||||
| READ Cycle, Begin Burst | External |
| L | H |
| L | L |
| H |
| L |
| X |
|
| H |
| H |
| |||||||||||||
| READ Cycle, Continue Burst | Next |
| X | X |
| X | L |
| H |
| H |
| L |
|
| H |
| L |
| Q | ||||||||||||
| READ Cycle, Continue Burst | Next |
| X | X |
| X | L |
| H |
| H |
| L |
|
| H |
| H |
| |||||||||||||
| READ Cycle, Continue Burst | Next |
| H | X |
| X | L |
| X |
| H |
| L |
|
| H |
| L |
| Q | ||||||||||||
Document #: |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| Page 13 of 36 | |||||
[+] Feedback
