W989D6DB Datasheet, PDF (28/64 Pages) Winbond – Standard Self Refresh Mode

W989D6DB / W989D2DB
9.4 DC Characteristics
(x16, x32)
Parameter
Sym.
Operating current:
Active mode; burst = 1; READ or WRITE; tRC = tRC (min)
Standby current:
Power-down mode; All banks idle; CKE = LOW
Standby current:
Nonpower-down mode; All banks idle; CKE = HIGH
Standby current:
Active mode; CKE = LOW; CS = HIGH; All banks active;
No accesses in progress
Standby current:
Active mode; CKE = HIGH; CS = HIGH; All banks active
after tRCD met; No accesses in progress
Operating current:
Burst mode; READ or WRITE; All banks active; Half of DQ
toggling every cycle
Auto refresh current: tRFC = tRFC (min)
CKE = HIGH; CS = HIGH
Deep Power Down Mode
IDD1
IDD2P
IDD2N
IDD3P
IDD3N
IDD4
IDD5
IZZ
-6
Max.
38
0.3
10
3
25
75
75
10
-75
Max.
35
Unit
mA
Notes
2, 3, 4
0.3
mA
5
10
mA
3
mA
3, 4, 6
25
mA
3, 4, 6
70
mA
2, 3, 4
75
mA 2, 3, 4, 6
10
μA
5, 8
9.5 Automatic Temperature Compensated Self Refresh Current Feature
Partial Array Self Refresh
Setting EMR [2:0]
Operating Temperature
Setting EMR[4:3]
Sym
Max.
Unit
EMR[2:0]=000, CKE=0.2V
All 4 banks are Refreshed
EMR[2:0]=001, CKE=0.2V
Bank 0 and 1 are Refreshed
EMR[2:0]=010, CKE=0.2V
Only Bank 0 is Refreshed
85°C
85°C
85°C
450
IDD6
350
μA
300
Notes:
1. A full initialization sequence is required before proper device operation is ensured.
2. IDD is dependent on output loading and cycle rates. Specified values are obtained with minimum cycle time and the outputs
open.
3. The IDD current will increase or decrease proportionally according to the amount of frequency alteration for the test condition.
4. Address transitions average one transition every 2 clocks.
5. Measurement is taken 500mS after entering into this operating mode to provide tester measuring unit settling time.
6. Other input signals can transition only one time for every 2 clocks and are otherwise at valid Vih or Vil levels.
7. CKE is HIGH during the REFRESH command period tRFC (min) else CKE is LOW.
8. Typical values at 25°C (not a maximum value).
9. Enables on-die refresh and address counters.
10.Values for IDD6 85°C full array and partial array are guaranteed for the entire temperature range. All other IDD6 values are
estimated.
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Publication Release Date: Mar. 19, 2014
Revision: A01-001