M48T129V-85PM1 STMicroelectronics, M48T129V-85PM1 Datasheet - Page 21

• Manufacturer Part Number: M48T129V-85PM1
• Description: IC TIMEKPR NVRAM 1MBIT 3V 32-DIP
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T129V-85PM1

• Memory Size: 1M (128K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Through Hole
• Package / Case: 32-DIP (600 mil) Module
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-2835-5

M48T129V, M48T129Y
5
Note:
Note:
DC and AC parameters
This section summarizes the operating and measurement conditions, as well as the DC and
AC characteristics of the device. The parameters in the following DC and AC characteristic
tables are derived from tests performed under the measurement conditions listed in the
relevant tables. Designers should check that the operating conditions in their projects match
the measurement conditions when using the quoted parameters.
Table 8.
Output Hi-Z is defined as the point where data is no longer driven.
Figure 13. AC testing load circuit
Excluding open drain output pins; 50 pF for M48T129V.
Table 9.
1. Effective capacitance measured with power supply at 5 V (M48T129Y) or 3.3 V (M48T129V); sampled
2. At 25 °C, f = 1 MHz.
3. Outputs deselected.
Supply voltage (V
Ambient operating temperature (T
Load capacitance (C
Input rise and fall times
Input pulse voltages
Input and output timing ref. voltages
Symbol
C
only, not 100% tested.
C
IO
IN
(3)
Input capacitance
Input / output capacitance
Operating and AC measurement conditions
Capacitance
Parameter
CC
)
L
Parameter
)
C L includes JIG capacitance
DEVICE
UNDER
TEST
(1)(2)
Doc ID 5710 Rev 4
A
)
C L = 100pF
M48T129Y
4.5 to 5.5
0 to 70
0 to 3
650Ω
or 50pF
100
≤ 5
1.5
Min
-
-
1.75V
Max
M48T129V
20
20
DC and AC parameters
3.0 to 3.6
0 to 70
0 to 3
≤ 5
1.5
50
Unit
pF
pF
AI01803C
Unit
pF
°C
ns
V
V
V
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