M48T58Y-70PC1 STMicroelectronics, M48T58Y-70PC1 Datasheet - Page 22

• Manufacturer Part Number: M48T58Y-70PC1
• Description: IC TIMEKPR NVRAM 64KBIT 5V 28DIP
• Manufacturer: STMicroelectronics
• Series: Timekeeper®r
• Type: Clock/Calendar/NVSRAMr

Specifications of M48T58Y-70PC1

• Memory Size: 64K (8K x 8)
• Time Format: HH:MM:SS (24 hr)
• Date Format: YY-MM-DD-dd
• Interface: Parallel
• Voltage - Supply: 4.5 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): 4.5 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: 497-2859-5; M48T58Y-70PC1

DC and AC parameters
8
Note:
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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
Designers should check that the operating conditions in their projects match the
measurement conditions when using the quoted parameters.
Table 7.
Output Hi-Z is defined as the point where data is no longer driven.
Figure 11. AC measurement load circuit
Table 8.
1. Effective capacitance measured with power supply at 5 V; sampled only, not 100% tested.
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
OUT
C
IN
(3)
Operating and AC measurement conditions
Capacitance
Parameter
CC
)
L
)
Output capacitance
C L includes JIG capacitance
Input capacitance
DEVICE
UNDER
Parameter
TEST
Doc ID 2412 Rev 7
A
)
1kΩ
(1)(2)
4.75 to 5.5
M48T58
5V
0 to 70
0 to 3
100
≤ 5
1.5
1.9kΩ
C L = 100pF or 5pF
Min
-
-
OUT
M48T58Y
4.5 to 5.5
0 to 70
0 to 3
Max
100
≤ 5
1.5
10
10
M48T58, M48T58Y
Unit
pF
pF
Unit
Table
°C
pF
ns
V
V
V
AI01030
7.