M48T08-100PC1 STMicroelectronics, M48T08-100PC1 Datasheet - Page 21

• Manufacturer Part Number: M48T08-100PC1
• Description: IC TIMEKPR NVRAM 64KBIT 5V 28-DI
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T08-100PC1

• Memory Size: 64K (8K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 4.75 V ~ 5.5 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 28-DIP Module (600 mil), 28-EDIP
• Function: Clock/Calendar/NV Timekeeping RAM/Battery Backup
• Rtc Memory Size: 8192 Byte
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.75 V
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: Through Hole
• Rtc Bus Interface: Parallel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2828-5

M48T08, M48T08Y, M48T18
Table 9.
1. Valid for ambient operating temperature: T
2. Outputs deselected.
3. Measured with control bits set as follows: R = '1'; W, ST, FT = '0.'
4. The INT pin is open drain.
Figure 12. Power down/up mode AC waveforms
Note:
Symbol
I
I
I
CC1
CC2
V
LO
V
I
V
V
I
CC
OH
LI
OL
IH
IL
(2)
(3)
(3)
V CC
V PFD (max)
V PFD (min)
V SO
INT
INPUTS
OUTPUTS
Input leakage current
Output leakage current
Supply current
Supply current (standby) TTL
Supply current (standby) CMOS
Input low voltage
Input high voltage
Output low voltage
Output low voltage (INT)
Output high voltage
DC characteristics
Inputs may or may not be recognized at this time. Caution should be taken to keep E1 high
or E2 low as V
cycles after V
though a power on reset is being applied to the processor, a reset condition may not occur
until after the system clock is running.
tPD
(PER CONTROL INPUT)
Parameter
VALID
RECOGNIZED
CC
CC
tF
rises above V
rises past V
(4)
tPFX
A
= 0 to 70 °C; V
tFB
PFD
Doc ID 2411 Rev 10
PFD
(min). Some systems may perform inadvertent WRITE
(min) but before normal system operations begin. Even
E1 = V
Test condition
0V
E1 = V
E2 = V
0V
CC
Outputs open
I
I
I
OL
OL
OH
= 4.75 to 5.5 V or 4.5 to 5.5 V (except where noted).
V
tDR
= 2.1 mA
= 0.5 mA
V
= –1 mA
IH,
OUT
CC
SS
IN
E2 = V
– 0.2V,
+ 0.2V
DON'T CARE
HIGH-Z
V
V
CC
CC
(1)
IL
tRB
M48T08/M48T18/T08Y
–0.3
Min
2.2
2.4
NOTE
DC and AC parameters
tR
(PER CONTROL INPUT)
V
tPFH
CC
Max
trec
RECOGNIZED
0.8
0.4
0.4
±1
±1
80
3
3
VALID
+ 0.3
AI00566
Unit
mA
mA
mA
µA
µA
V
V
V
V
V
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