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參數(shù)資料
| 型號(hào)： | TMS27C040-15 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | Programmable Read-Only Memory(512K×8結(jié)構(gòu),可擦可編程只讀存儲(chǔ)器) |
| 中文描述： | 可編程只讀存儲(chǔ)器（為512k × 8結(jié)構(gòu)，可擦可編程只讀存儲(chǔ)器） |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 236K |
| 代理商： | TMS27C040-15 |
TMS27C040 4194304-BIT UV ERASABLE PROGRAMMABLE
TMS27PC040 4194304-BIT PROGRAMMABLE
READ-ONLY MEMORY
SMLS040E – NOVEMBER 1990 – REVISED JUNE 1995
6
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
recommended operating conditions
MIN
4.5
TYP
MAX
5.5
UNIT
V
VCC
Supply voltage
Read mode (see Note 2)
5
SNAP! Pulse programming algorithm
6.25
6.5
6.75
V
VPP
Supply voltage
Read mode
VCC– 0.6
12.75
VCC+ 0.6
13.25
V
SNAP! Pulse programming algorithm
13
V
VIH
High-level dc input voltage
TTL
2
VCC + 0.5
VCC+ 0.5
0.8
V
CMOS
VCC– 0.2
– 0.5
V
VIL
Low-level dc input voltage
TTL
V
CMOS
– 0.5
0.2
V
TA
Operating free-air temperature
’27C040-_ _JL and JL4
’27PC040-_ _FML
0
70
°
C
TA
NOTE 2: VCC must be applied before or at the same time as VPP and removed after or at the same time as VPP. The device must not be inserted
into or removed from the board when VPP or VCC is applied.
Operating free-air temperature
’27C040-_ _JE and JE4
– 40
85
°
C
electrical characteristics over recommended ranges of supply voltage and operating free-air
temperature
PARAMETER
TEST CONDITIONS
IOH = – 400
μ
A
IOH = – 20
μ
A
IOL = 2.1 mA
IOL = 20
μ
A
VI = 0 V to 5.5 V
VO = 0 V to VCC
VPP = VCC = 5.5 V
VPP = 12.75 V
VCC = 5.5 V,
VCC = 5.5 V,
E = VIL,
tcycle = minimum cycle time,
outputs open
MIN
2.4
MAX
UNIT
VOH
High-level dc output voltage
V
VCC – 0.1
VOL
Low-level dc output voltage
0.4
V
0.1
±
1
±
1
10
II
IO
IPP1
IPP2
Input current (leakage)
μ
A
μ
A
μ
A
mA
Output current (leakage)
VPP supply current
VPP supply current (during program pulse)
50
ICC1
VCCsupply current (standby)
VCC supply current (standby)
TTL-Input level
E = VIH
E = VCC
VCC = 5.5 V
1
mA
μ
A
CMOS-Input level
100
ICC2
VCC supply current (active)
50
mA
Minimum cycle time = maximum access time.
capacitance over recommended ranges of supply voltage and operating free-air temperature,
f = 1 MHz
§
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Ci
Co
Capacitance measurements are made on sample basis only.
§All typical values are at TA = 25
°
C and nominal voltages.
Input capacitance
VI = 0 V
VO = 0 V
4
8
pF
Output capacitance
8
12
pF
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