M48T18-150PC STMicroelectronics, M48T18-150PC Datasheet - Page 12

• Manufacturer Part Number: M48T18-150PC
• Description: IC, TIMEKEEPER, YY-MM-DD-dd, 8KX8, DIP28
• Manufacturer: STMicroelectronics

Specifications of M48T18-150PC

• Clock Format: HH
• Clock Ic Type: Timekeeper
• Memory Configuration: 8K X 8
• Supply Voltage Range: 4.5V To 5.5V
• Digital Ic Case Style: DIP
• No. Of Pins: 28
• Date Format: YY-MM-DD-dd
• Memory Size: 64Kbit
• Nvram Features: RTC, Internal Battery, XTAL
• Interface Type: Parallel
• Access Time: 150ns
• Memory Case Style: DIP
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Operation modes
Table 4.
1. Valid for ambient operating temperature: T
12/31
Symbol
t
t
t
t
t
t
t
t
t
t
E1LE1H
E2HE2L
t
t
t
t
t
t
t
t
t
t
E1HAX
E1HDX
t
AVE2H
DVE1H
E2LDX
AVE1H
AVE1L
WLWH
WHAX
E2LAX
DVWH
DVE2L
WHDX
AVE2L
WHQX
WLQZ
AVWH
AVWL
AVAV
WRITE mode AC characteristics
WRITE cycle time
Address valid to WRITE enable low
Address valid to chip enable 1 low
Address valid to chip enable 2 high
WRITE enable pulse width
Chip enable 1 low to chip enable 1 high
Chip enable 2 high to chip enable 2 low
WRITE enable high to address transition
Chip enable 1 high to address transition
Chip enable 2 low to address transition
Input valid to WRITE enable high
Input valid to chip enable 1 high
Input valid to chip enable 2 low
WRITE enable high to input transition
Chip enable 1 high to input transition
Chip enable 2 low to input transition
WRITE enable low to output Hi-Z
Address valid to WRITE enable high
Address valid to chip enable 1 high
Address valid to chip enable 2 low
WRITE enable high to output transition
Parameter
A
= 0 to 70 °C; V
(1)
Doc ID 2411 Rev 10
CC
= 4.75 to 5.5 V or 4.5 to 5.5 V (except where noted).
–100/–10 (T08Y)
Min
100
80
80
80
10
10
10
50
50
50
80
80
80
10
0
0
0
5
5
5
M48T08/M48T18/T08Y
Max
50
M48T08, M48T08Y, M48T18
–150/–15 (T08Y)
Min
150
100
130
130
130
130
130
10
10
10
70
70
70
10
0
0
0
5
5
5
Max
70
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns