512MB, 1GB (x64)
200-PIN DDR SODIMM
Table 19: Serial Presence-Detect EEPROM DC Operating Conditions
All voltages referenced to VSS; VDDSPD = +2.3V to +3.6V
PARAMETER/CONDITION
SYMBOL
MIN
MAX
UNITS
VDDSPD
VIH
VIL
2.3
3.6
V
V
SUPPLY VOLTAGE
VDD Pꢀ0.7 VDD + 0.5
INPUT HIGH VOLTAGE: Logic 1; All inputs
INPUT LOW VOLTAGE: Logic 0; All inputs
-1
–
VDD Pꢀ0.3
V
VOL
ILI
0.4
10
10
30
2
V
OUTPUT LOW VOLTAGE: IOUT = 3mA
–
µA
µA
µA
mA
INPUT LEAKAGE CURRENT: VIN = GND to VDD
OUTPUT LEAKAGE CURRENT: VOUT = GND to VDD
STANDBY CURRENT: SCL = SDA = VDD - 0.3V; All other inputs = VDD or VSS
POWER SUPPLY CURRENT: SCL clock frequency = 100 KHz
ILO
–
ISB
–
ICC
–
Table 20: Serial Presence-Detect EEPROM AC Operating Conditions
All voltages referenced to VSS; VDDSPD = +2.3V TO +3.6V
PARAMETER/CONDITION
SYMBOL
MIN MAX UNITS
NOTES
tAA
tBUF
0.2
1.3
0.9
µs
µs
1
SCL LOW to SDA data-out valid
Time the bus must be free before a new transition can start
Data-out hold time
tDH
200
ns
tF
300
ns
2
SDA and SCL fall time
tHD:DAT
tHD:STA
tHIGH
tI
tLOW
tR
fSCL
tSU:DAT
tSU:STA
tSU:STO
tWRC
0
µs
Data-in hold time
0.6
0.6
µs
Start condition hold time
Clock HIGH period
µs
50
ns
Noise suppression time constant at SCL, SDA inputs
Clock LOW period
1.3
µs
0.3
µs
2
SDA and SCL rise time
400
KHz
ns
SCL clock frequency
100
0.6
0.6
Data-in setup time
µs
3
4
Start condition setup time
Stop condition setup time
WRITE cycle time
µs
10
ms
NOTE:
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 resistor, and the EEPROM does not respond to its slave address.
09005aef80a646bc
DDF16C64_128x64HG_B.fm - Rev. B 7/03 EN
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2003 Micron Technology, Inc.
26
MICRON [ MICRON TECHNOLOGY ]
