IBMB3N32644HCB
IBMB3N32734HCB
32M x 64/72 One-Bank Unbuffered SDRAM Module
Preliminary
Operating, Standby, and Refresh Currents (TA= 0 to +70°C, VDD= 3.3V ± 0.3V)
Organization
Parameter
Symbol
Test Condition
Units
Notes
1, 2
x64
960
x72
1 Bank operation
= t (min), t = min
t
RC
RC
CK
Operating Current
I
1080
mA
CC1
Active-Precharge command cycling
without Burst operation
CKE0 ≤ V (max), t = min,
IL
CK
I
16
16
18
18
mA
mA
mA
mA
mA
CC2P
S0, S2 =V (min)
IH
Precharge Standby Current in Power
Down Mode
CKE0 ≤ V (max), t = Infinity,
IL
CK
I
CC2PS
S0, S2 =V (min)
IH
CKE0 ≥ V (min), t = min,
IH
CK
I
240
64
270
72
3
4
3
CC2N
S0, S2 =V (min)
IH
Precharge Standby Current in Non-
Power Down Mode
CKE0 ≥ V (min), t = Infinity,
IH
CK
I
CC2NS
S0, S2 =V (min)
IH
CKE0 ≥ V (min), t = min,
IH
CK
I
480
540
CC3N
S0, S2 =V (min)
IH
No Operating Current
(Active state: 4 bank)
CKE0 ≤ V (max), t = min,
IL
CK
I
S0, S2 =V (min)
48
54
mA
5
CC3P
IH
(Power Down Mode)
t
= min,
CK
Read/write command cycling,
multiple banks active,
gapless data, BL = 4
Burst Operating Current
I
960
1080
1575
mA
mA
2, 6
CC4
t
= min, t = t (min),
RC RC
CK
Auto (CBR) Refresh Current
I
I
1400
CC5
CBR command cycling
Self Refresh Current
CKE0 ≤ 0.2V
24
30
27
30
mA
CC6
Serial PD Device Standby Current
I
V
= GND or V
DD
µA
7
8
SB
IN
Serial PD Device Active Power Sup-
ply Current
I
SCL Clock Frequency = 100KHz
1
1
mA
CCA
1. These parameters depend on the cycle rate and are measured with the cycle determined by the minimum value of t and t
.
RC
CK
Input signals are changed up to three times during t (min).
RC
2. The specified values are obtained with the output open.
3. Input signals are changed once during three clock cycles.
4. Input signals are stable.
5. Active standby current will be higher if Clock Suspend is entered during a Burst Read cycle (add 1mA per DQ).
6. Input signals are changed once during t
.
ck(min)
7. V = 3.3V
DD
8. Input pulse levels V x 0.1 to V x 0.9, input rise and fall times 10ns, input and output timing levels V x 0.5, output load 1 TTL
DD
DD
DD
gate and CL=100pf.
06K3671.H01574
11/00
©IBM Corporation. All rights reserved.
Use is further subject to the provisions at the end of this document.
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