MT9VDDT6472HG Datasheet, PDF (16/18 Pages) Micron Technology – DDR SDRAM SODIMM

128MB, 256MB, 512MB (x72, ECC, SR) 200-Pin DDR SODIMM
Serial Presence-Detect
Serial Presence-Detect
Table 16: Serial Presence-Detect EEPROM DC Operating Conditions
Parameter/Condition
Supply voltage
Input high voltage: Logic 1; All inputs
Input low voltage: Logic 0; All inputs
Output low voltage: I_OUT = 3mA
Input leakage current: V_IN = GND to V_DD
Output leakage current: V_OUT = GND to V_DD
Standby current: SCL = SDA = V_DD - 0.3V; All other inputs = V_SS or V_DD
Power supply current: SCL clock frequency = 100 kHz
Symbol
V_DDSPD
V_IH
V_IL
V_OL
I_LI
I_LO
I_SB
I_CC
Min
Max
Units
2.3
3.6
V
V_DDSPD × 0.7 V_DDSPD + 0.5 V
–1.0
V_DDSPD × 0.3 V
–
0.4
V
–
10
µA
–
10
µA
–
30
µA
–
2.0
mA
Table 17: Serial Presence-Detect EEPROM AC Operating Conditions
Parameter/Condition
SCL LOW to SDA data-out valid
Time the bus must be free before a new transition can start
Data-out hold time
Clock/data fall time
Clock/data rise time
Data-in hold time
Start condition hold time
Clock HIGH period
Noise suppression time constant at SCL, SDA inputs
Clock LOW period
SCL clock frequency
Data-in setup time
Start condition setup time
Stop condition setup time
WRITE cycle time
Symbol
t_AA
t_BUF
t_DH
t_F
t_R
t_HD:DAT
t_H:STA
t_HIGH
t_I
t_LOW
f_SCL
t_SU:DAT
t_SU:STA
t_SU:STO
t_WRC
Min
0.2
1.3
200
–
–
0
0.6
0.6
–
1.3
–
100
0.6
0.6
–
Max
0.9
–
–
300
300
–
–
–
50
–
400
–
–
–
10
Units
µs
µs
ns
ns
ns
µs
µs
µs
ns
µs
kHz
ns
µs
µs
ms
Notes
1
2
2
3
4
Notes:
1. To avoid spurious start and stop conditions, a minimum delay is placed between SCL = 1 and
the falling or rising edge of SDA.
2. This parameter is sampled.
3. For a restart condition or following a WRITE cycle.
4. The SPD EEPROM WRITE cycle time (^tWRC) is the time from a valid stop condition of a write
sequence to the end of the EEPROM internal ERASE/PROGRAM cycle. During the WRITE
cycle, the EEPROM bus interface circuit is disabled, SDA remains HIGH due to pull-up resis-
tance, and the EEPROM does not respond to its slave address.
Serial Presence-Detect Data
For the latest serial presence-detect data, refer to Micron’s SPD page:
www.micron.com/SPD.
PDF: 09005aef80804052/Source: 09005aef806e057b
DD9C16_32_64x72H.fm - Rev. F 3/12 EN
16
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