HITACHI HA12219

HA12219NT
Audio Signal Processor for Cassette Deck
ADE-207-258A
2nd Edition
July 1998
Description
HA12219NT is silicon monolithic bipolar IC providing PB equalizer, REC equalizer system and each
electronic control switch in one chip.
Functions
• PB equalizer
× 2 channel
• REC equalizer × 2 channel
• Each electronic control switch to change REC/PB etc.
• REC MUTE
• REC head return switch
Features
• REC equalizer is very small number of external parts, built-in 2 types of frequency characteristics.
• PB equalizer circuit built-in.
• REC /PB are possible with TYPE I/II.
• Controllable from direct micro-computer output.
• Available to reduce substrate-area because of high integration and small external parts.
HA12219NT
Pin Description, Equivalent Circuit (VCC = 12 V, Vref = 5.6 V, Ta = 25°C, No signal,
The value in the table show typical value.)
Pin No.
Pin Name
Note
1
VCC
V = VCC
2
REC-OUT(L)
V = Vref
Equivalent Circuit
Pin Description
VCC pin
REC-EQ output
VCC
GND
3
REC-OUT(R)
4
REC-RETURN
V = Vref
V’ = Vref
VCC
REC return
I
,
4 V
V
5 pin, 6 pin
I
GND
5
PB-IN B(L)
6
PB-IN B(R)
7
VREF
PB B deck input
V = Vref
V’ = VCC / 2
VCC
Reference
10 k
,
V
V
10 k
GND
8
PB-IN A(L)
V = Vref
PB A deck input
VCC
PB-NF
9
PB-IN A(R)
Rev.2, Jul. 1998, page 2 of 29
HA12219NT
Pin Description, Equivalent Circuit (VCC = 12 V, Vref = 5.6 V, Ta = 25°C, No signal,
The value in the table show typical value.) (cont)
Pin No.
Pin Name
Note
12
PB-NF(R)
PB-IN = Vref
Equivalent Circuit
Pin Description
PB-EQ feed back
VCC
PB-IN
17
PB-NF(L)
13
PB-EQ(R)
PB-OUT = Vref
NAB output
PB-OUT
GND
16
PB-EQ(L)
21
REC-IN(R)
V = Vref
REC-EQ input
VCC
100 k
Vref 7
22
REC-IN(L)
14
PB-OUT(R)
V = Vref
VCC
PB output
GND
15
PB-OUT(L)
18
A 120/70
I = 20 µA
VCC
Mode control input
I
22k
100 k
GND
19
A/B
20
B I/II
Rev.2, Jul. 1998, page 3 of 29
HA12219NT
Pin Description, Equivalent Circuit (VCC = 12 V, Vref = 5.6 V, Ta = 25°C, No signal,
The value in the table show typical value.) (cont)
Pin No.
Pin Name
Note
10
IREF
V = 1.2 V
11
GND
Rev.2, Jul. 1998, page 4 of 29
Equivalent Circuit
Pin Description
Equalizer
reference current
input
GND pin
VCC
+
2
1
REC-EQ(L)
REC-EQ(R)
REC-IN(L)
REC-IN(R)
+
3
6
5
B /II
/70
A
4
Return SW
B
18
A/
19
REC-OUT(R)
A
20
REC-RETURN
21
VCC
PB-IN B(L)
22
REC-OUT(L)
PB-IN B(R)
+
+
Rev.2, Jul. 1998, page 5 of 29
17
−
+
+
7
16
VREF
120/70
8
9
10
13
14
PB-OUT(R)
PB-IN A(R)
PB-OUT(L)
PB-IN A(L)
15
IREF
120/70
B
−
+
11
12
GND
Unit R : Ω
C:F
A
Block Diagram
HA12219NT
HA12219NT
Parallel Data Format
Pin No.
Pin Name
Lo
Mid
Hi
18
A 120/70
*
—
*
19
A/B
B
Return SW OFF
REC Mute ON
A
Return SW ON
REC Mute ON
A
Return SW ON
REC Mute OFF
20
B I/II
REC-EQ *
TYPE I
—
REC-EQ *
TYPE II
Note: PB-EQ 120/70 logic
A/B
B
A 120/70
120
B I/II
Lo
Mid
Hi
Lo
Lo
120 µ
120 µ
120 µ
Lo
Hi
70 µ
120 µ
120 µ
Hi
Lo
120 µ
70 µ
70 µ
Hi
Hi
70 µ
70 µ
70 µ
Rev.2, Jul. 1998, page 6 of 29
HA12219NT
Functional Description
Power Supply Range
HA12219NT is designed to operate on single supply, shown by table 1.
Table 1
Supply Voltage
Item
Power Supply Range
Single Supply
9.5 V to 15.0 V
Reference Voltage
As AC reference (Vref) of this IC has not a current drivability, Vref fluctuates by A/B switching of PB-EQ.
Provided it causes you anxiety, please supply 7 pin with approximate 1/2 VCC voltage.
For example, a suitable circuit is shown by figure 1.
This IC has a capacitor charger for the Vref, indicated to the pin interface circuit figure.
1
VCC
Lch PB-EQ Reference voltage
Lch REC-EQ Reference voltage
470 Ω
Rch REC-EQ Reference voltage
Rch PB-EQ Reference voltage
11
GND
7
Vref
+
470 µF
Figure 1 Reference Voltage Circuit
Rev.2, Jul. 1998, page 7 of 29
HA12219NT
Operating Mode Control
HA12219NT provides fully electronic switching circuits. And each operating mode control is controlled
by parallel data (DC voltage).
Table 2 shows the control voltage of each control input pin.
Table 2
Control Voltage (Vth)
Pin No.
Lo
Mid
Hi
Unit
18, 20
0.0 to 0.5
—
2.4 to VCC
V
Test Condition
Input Pin
Measure
V
19
0.0 to 0.5
Note:
1.2 to 1.8
2.4 to VCC
V
1. Each pin is pulled down with 100 kΩ internal resistor. 16 to 18 pins are low-level when each pin
is open.
2. Over shoot level and under shoot level of input signal must be the standardized.
(High: Less than VCC, Low: More than –0.2 V)
Block Diagram
Figure 2 shows the block diagram.
As this IC is built-in REC return switch, the configuration system can be simple system using a few
external component and the REC/PB head.
About these logics, please look at the Parallel Data Format.
REC-IN
REC-OUT(L)
REC - EQ
2
22
4
Return SW
B head
PB-IN B(L)
A head
PB-IN A(L)
5
B
8
A
PB-OUT
+
−
15
7
10
13
Vref
Figure 2 Block Diagram (Lch)
Rev.2, Jul. 1998, page 8 of 29
Normal Speed
PB-A
HA12219NT
Level Block Diagram
The gain establishment of PB-EQ considers PB output level
{(external AMP+PB AMP <HA12136A>) = 580 mV (Dolby Level)} like figure 3 as the target.
Regarding REC-EQ adjust the gain in front of input to this IC.
Similarly to PB, it consider Dolby level as a standard. And R1 needs the value more than 5.6 kΩ.
Because mode establishment resistances are built-in, REC-EQ frequency characteristics are respectively
fixed value.
In case the change of the frequency characteristics are necessary, please inquire the responsible agent
because the adjustment of resistors is necessary.
580 mV
(Dolby level)
HA12136A
63.6 mV
0.6 mV
40.5 dB
26 dB
PB-EQ
Dolby IC
Figure 3 PB Level Block Diagram (120 µs, 1 kHz)
Rev.2, Jul. 1998, page 9 of 29
HA12219NT
Absolute Maximum Ratings (Ta = 25°C)
Item
Symbol
Rating
Unit
Maximum supply voltage
VCC max
16
V
Power dissipation
PT
500
mW
Operating temperature
Topr
–40 to +75
°C
Storage temperature
Tstg
–55 to +125
°C
Operating voltage
Vopr
9.5 to 15
V
Note: HA12219NT operates on single supply voltage.
Rev.2, Jul. 1998, page 10 of 29
Note
Ta ≤ 75°C
CT A/B
PB-EQ crosstalk
Note: 1. Large level without clipping
2. VCC = 9.5 V, Vref = 4.75 V
THD PB
VN PB
CT R/L(1)
60.0 70.0

dB
A
B
A/B
A/B
A/B
 0.1 0.5
%
 90.0 180.0 µVrms
dB
50.0 60.0 
A/
A



A/B
A
A/B
A/B
A/B
A/B
Typ
23.1



60.0
70.0
40.5
36.2
32.0
0.6
Max Unit
32.7 mA
0.5
V
1.8
V
VCC
V
dB

dB

43.5 dB
39.2 dB
35.0 dB
 Vrms
Min
IQ

−0.2
VIL
1.2
VIM
VIH
2.4
CT PB/REC(1) 50.0
CT PB/REC(2) 60.0
37.5
GV PB(1)
33.2
GV PB(2)
29.0
GV PB(3)
0.3
Vomax PB
Symbol
PB-EQ THD
PB-EQ noise voltage
PB-EQ
channel separation
PB-EQ
maximum output *2
PB-EQ gain
PB-REC crosstalk
Logical threshold
Item
Quiescent current
I
I
I
I
B /II A
I



I
I
I
I
II
I
Test Condition
120
120
120
120
1k
1k

1k



1k
1k
1k
10k
10k
1k
*1
0.6

*1



*1
*1
0.6
0.6
0.6

21
9
9/6
9/6
9/6
9/6
R
22
8
8/5
8/5
8/5
8/5
L
14
3
14
14
14
14
R
15
2
15
15
15
15
L
6
9
5 14 15
8
18, 20
19
18, 20
COM
1
Application Terminal
Input Output
9/6 8/5 14 15
Rg=820Ω, DIN-AUDIO 9/6 8/5 14 15
8/5 9/6 14 15
THD=1%
REC-EQ → PB-EQ
PB-EQ → REC-EQ
fin
Vin
/70 (Hz) (mVrms)
Other

 No signal
70



120
120
120
120
70
120
IC Condition
HA12219NT
Electrical Characteristics (Ta = 25°C, VCC = 12 V, Vref = 5.6 V,
PBIN standard level = 0.6 mVrms at 1 kHz)
Rev.2, Jul. 1998, page 11 of 29
Rev.2, Jul. 1998, page 12 of 29
1.2
Vomax REC
THD REC
S/N REC
REC-EQ
maximum output *2
REC-EQ THD
REC-EQ S/N
Note: 1. Large level without clipping
2. VCC = 9.5 V, Vref = 4.75 V
dB
Vrms


%
dB
Unit
dB
dB
dB
dB
dB
dB
dB
Max
21.5
23.4
35.1
25.3
28.7
39.6

 0.2 0.5
61.0 64.0 
1.8
66.0 76.0
R-MUTE ATT
REC-EQ
channel separation
REC-EQ frequency
response
TYPE II
REC-MUTE
attenuation
Typ
20.0
21.4
32.1
23.8
26.7
36.6
70.0
Min
18.5
19.4
29.1
22.3
24.7
33.6
61.0
Symbol
GV REC-NN1
GV REC-NN2
GV REC-NN3
GV REC-NC1
GV REC-NC2
GV REC-NC3
CT R/L(2)
Item
REC-EQ frequency
response
TYPE I
A
A
A
MID
A/
A
A
A
A
A
A
A
I
I
I
I
B /II A
I
I
I
II
II
II
I
120
120
120
120
1k
1k
1k
1k
R
3
3
3
3
3
3
3
77.5
 Rg=5.1kΩ, A-WTG
21 22 3
21 22 3
21 22 3
L
22
22
22
22
22
22
22

R
21
21
21
21
21
21
21
21 22 3
THD=1%
Other
2
2
2
2
L
2
2
2
2
2
2
2
COM
Application Terminal
Input Output
*1
Vin
(mVrms)
7.75
7.75
7.75
7.75
7.75
7.75
*1
Test Condition
fin
/70 (Hz)
1k
120
5k
120
12.5k
120
1k
120
5k
120
12.5k
120
1k
120
IC Condition
HA12219NT
Electrical Characteristics (Ta = 25°C, VCC = 12 V, Vref = 5.6 V,
EQIN standard level = 20 dBs = 77.5 mVrms = 0 dB) (cont)
SW1
OFF
AC-VM1 Audio-SG
ON
SW2
DC
source 3
PB
REC
DC
source 2
C1
100µ
22
21
C3
2.2µ
Lch
SW5
Rch
R1
10k
+
C13
0.47µ
Ain SW6
SW4 Bin
C2
2.2µ
2
1
DC
source 1
VCC
+
C14
0.47µ
B
A
+
SW10
120
R2
10k
+
Lch
Rch
Lch
Rch
SW7
3
4
5
6
C4 R3 C5 R4
22µ 820 22µ 820
+
Return SW
B
17
70
18
SW9
A
19
A
20
SW8
I
B /II
II
−
+
16
+
8
+
9
C7 R5 C8 R6
22µ 820 22µ 820
+
C6
470µ
7
R12
10k
13
R9
330k
Rch
Lch
R11 R10
12k 18k
14
15
R16 R14
18k 12k
R15
330k
C12
0.01µ
R17
180
120/70
R18
5.1k
C10
2.2µ
PB-OUT(L)
PB-IN A(L)
R19
5.1k
REC-IN(L)
REC-EQ(L)
VCC
A/
REC-RETURN
REC-IN(R)
REC-EQ(R)
REC-OUT(L)
/70
A
REC-OUT(R)
PB-NF(L)
PB-IN B(R)
C11
2.2µ
PB-OUT(R)
PB-IN A(R)
+
Lch
PB-EQ(L)
VREF
R13
10k
10
R7
22k
B
−
+
12
C9
0.01µ
R8
180
SW11
120/70
+
Rch
PB-EQ(R)
IREF
+
PB-IN B(L)
PB-NF(R)
11
GND
+
SW3
A
SW12
Unit R : Ω
C:F
Vref
DC
source 4
Oscilo Noise
AC-VM2 Distortion
analyzer scope meter
REC
PB
HA12219NT
Test Circuit
Rev.2, Jul. 1998, page 13 of 29
HA12219NT
Characteristic Curves
Quiescent Current vs. Supply Voltage
Quiescent Current IQ (mA)
25
20
BI
BII
A 120
A 70
15
10
8
10
12
Supply Voltage (V)
16
14
PB-EQ Gain vs. Frequency
70
PB-EQ Gain (dB)
60
50
40
120µ
70µ
30
Ain → PBOUT
Bin
VCC = 8V, 12V, 16V
20
10
Rev.2, Jul. 1998, page 14 of 29
100
1k
Frequency (Hz)
10k
100k
HA12219NT
PB-EQ Maximum Output Level vs. Supply Voltage (1)
Maximum Output Level Vomax (Vrms)
5
Ain, PBOUT, NN
100Hz
1kHz
10kHz
4
3
2
1
8
10
12
Supply Voltage (V)
16
14
PB-EQ Maximum Output Level vs. Supply Voltage (2)
Maximum Output Level Vomax (Vrms)
5
Ain, PBOUT, NC
100Hz
1kHz
10kHz
4
3
2
1
8
10
12
Supply Voltage (V)
14
16
Rev.2, Jul. 1998, page 15 of 29
HA12219NT
Total Harmonic Distortion T.H.D. (%)
PB-EQ Total Harmonic Distortion vs. Output Level (1)
Ain
PBOUT
Bin
VCC = 12V, Vref = 5.6V
NN
100Hz
1kHz
10kHz
1.0
0.1
0.01
−20
−10
0
10
Output Level Vout (dBs)
20
Total Harmonic Distortion T.H.D. (%)
PB-EQ Total Harmonic Distortion vs. Output Level (2)
1.0
Ain PBOUT
Bin
VCC = 12V, Vref = 5.6V
NC
100Hz
1kHz
10kHz
0.1
0.01
−20
Rev.2, Jul. 1998, page 16 of 29
−10
0
10
Output Level Vout (dBs)
20
HA12219NT
PB-EQ Noise Level vs. Supply Voltage (1)
180
Ain
Vref = 1/2VCC
wait DIN/AUDIO
Rch 120µ
Rch 70µ
Lch 120µ
Lch 70µ
170
160
150
Noise (µVrms)
140
130
120
110
100
90
80
70
60
50
8
9
10
11
13
12
Supply Voltage (V)
14
15
16
15
16
PB-EQ Noise Level vs. Supply Voltage (2)
180
Bin
Vref = 1/2VCC
wait DIN/AUDIO
Rch 120µ
Rch 70µ
Lch 120µ
Lch 70µ
170
160
150
Noise (µVrms)
140
130
120
110
100
90
80
70
60
50
8
9
10
11
13
12
Supply Voltage (V)
14
Rev.2, Jul. 1998, page 17 of 29
HA12219NT
REC-EQ Gain vs. Frequency
45
Rin → RECOUT
Vin = 7.75mVrms
VCC = 12V, Vref = 5.6V
REC-EQ Gain (dB)
39
33
NC
27
NN
21
15
100
1k
10k
100k
Frequency (Hz)
REC-EQ Maximum Output Level vs. Supply Voltage (1)
5
Maximum Output Level Vomax (Vrms)
NN
100Hz
1kHz
10kHz
4
3
2
1
8
Rev.2, Jul. 1998, page 18 of 29
10
12
Supply Voltage (V)
14
16
HA12219NT
REC-EQ Maximum Output Level vs. Supply Voltage (2)
5
Maximum Output Level Vomax (Vrms)
NC
100Hz
1kHz
10kHz
4
3
2
1
8
10
12
Supply Voltage (V)
14
16
REC-EQ Total Harmonic Distortion vs. Output Level (1)
Total Harmonic Distortion T.H.D. (%)
100
Rin → RECOUT
NN
VCC = 12V, Vref = 5.6V
100Hz
1kHz
10kHz
10
1.0
0.1
−20
−10
0
10
Output Level Vout (dBs)
20
Rev.2, Jul. 1998, page 19 of 29
HA12219NT
REC-EQ Total Harmonic Distortion vs. Output Level (2)
Total Harmonic Distortion T.H.D. (%)
100
Rin → RECOUT
NC
VCC = 12V, Vref = 5.6V
100Hz
1kHz
10kHz
10
1.0
0.1
−20
−10
0
10
Output Level Vout (dBs)
20
REC-EQ Signal to Noise Ratio vs. Supply Voltage
70
Signal to Noise Ratio S/N (dB)
RECOUT
A-WTG filter
NN
NC
65
60
55
8
Rev.2, Jul. 1998, page 20 of 29
10
12
Supply Voltage (V)
14
16
HA12219NT
PB-EQ Channel Separation vs. Frequency (L ↔ R) (1)
−30
Channel Separation (dB)
−40
Ain → PBOUT
Vin = +12dB
VCC = 12V, Vref = 5.6V
L↔R
−50
−60
NC
−70
NN
−80
10
100
1k
Frequency (Hz)
10k
100k
PB-EQ Channel Separation vs. Frequency (L ↔ R) (2)
−30
Channel Separation (dB)
−40
Bin → PBOUT
Vin = +12dB
VCC = 12V, Vref = 5.6V
L↔R
−50
−60
NN
−70
NC
−80
10
100
1k
Frequency (Hz)
10k
100k
Rev.2, Jul. 1998, page 21 of 29
HA12219NT
PB-EQ Crosstalk vs. Frequency (Input: Ain → Bin)
−20
Crosstalk (dB)
−40
Ain → Bin
Vin = +12dB
VCC = 12V, Vref = 5.6V
NN, NC
−60
−80
−100
−120
10
100
1k
Frequency (Hz)
10k
100k
PB-EQ Crosstalk vs. Frequency (Input: Bin → Ain)
−20
Crosstalk (dB)
−40
Bin → Ain
Vin = +12dB
VCC = 12V, Vref = 5.6V
NN, NC
−60
−80
−100
−120
10
Rev.2, Jul. 1998, page 22 of 29
100
1k
Frequency (Hz)
10k
100k
HA12219NT
Ripple Rejection Ratio vs. Frequency (REC)
Ripple Rejection Ratio R.R.R. (dB)
0
RECOUT
Vin = 100mVrms
VCC = 12V, Vref = 5.6V
−10
1
7
11
NC
+
470µ
+
51Ω
−20
VCC
470Ω 470Ω
Vref
NN
−30
−40
−50
10
100
1k
Frequency (Hz)
10k
100k
Ripple Rejection Ratio vs. Frequency (PB)
Ripple Rejection Ratio R.R.R. (dB)
0
PBOUT
Vin = 100mVrms
VCC = 12V, Vref = 5.6V
−20
1
+
−40
7
11
NN
+
470µ
51Ω
VCC
470Ω 470Ω
Vref
NC
−60
−80
−100
10
100
1k
Frequency (Hz)
10k
100k
Rev.2, Jul. 1998, page 23 of 29
HA12219NT
Mute Attenuation vs. Frequency
−40
Rin → RECOUT
Vin = +12dB
VCC = 12V, Vref = 5.6V
−60
Mute Attenuation (dB)
NN
−80
NC
−100
−120
−140
10
100
1k
Frequency (Hz)
10k
100k
REC-EQ Channel Separation vs. Frequency (R → L)
−20
Channel Separation (dB)
−40
Rin → RECOUT
Vin = +12dB
VCC = 12V, Vref = 5.6V
Rch → Lch
NC
−60
NN
−80
−100
−120
10
Rev.2, Jul. 1998, page 24 of 29
100
1k
Frequency (Hz)
10k
100k
HA12219NT
REC-EQ Channel Separation vs. Frequency (L → R)
−20
Channel Separation (dB)
−40
Rin → RECOUT
Vin = +12dB
VCC = 12V, Vref = 5.6V
Lch → Rch
NC
−60
NN
−80
−100
−120
10
100
1k
Frequency (Hz)
10k
100k
Crosstalk vs. Frequency (Mode: REC-EQ → PB-EQ)
−20
Rin → PBOUT
Vin = 60mVrms
VCC = 12V, Vref = 5.6V
−40
Crosstalk (dB)
NC
−60
NN
−80
−100
−120
10
100
1k
Frequency (Hz)
10k
100k
Rev.2, Jul. 1998, page 25 of 29
HA12219NT
Crosstalk vs. Frequency (Mode: PB-EQ → REC-EQ) (1)
0
Ain → RECOUT
Vin = +15dB
VCC = 12V, Vref = 5.6V
Crosstalk (dB)
−20
−40
A70
−60
A120
−80
−100
10
100
1k
Frequency (Hz)
10k
100k
Crosstalk vs. Frequency (Mode: PB-EQ → REC-EQ) (2)
−20
Bin → RECOUT
Vin = +15dB
VCC = 12V, Vref = 5.6V
Crosstalk (dB)
−40
−60
BI
−80
BII
−100
−120
10
Rev.2, Jul. 1998, page 26 of 29
100
1k
Frequency (Hz)
10k
100k
HA12219NT
Altered Reference Voltage vs. External Resistance
400
VCC
Vref
1
7
∆Vref (PB-A vs. PB-B) (mV)
R21
300
VCC
R22
VCC = 12V (Vref = 1/2 VCC)
200
100
0
100
1k
10k
100k
Resistance (Ω) (R21, R22 same)
1M
RETURN Level vs. Frequency
−23
Pin 5 or 6
4
−24
RETURN Level (dB)
Vout
Vref
820Ω
V
+
22µ
Vin
−25
Vin = 1Vrms
−26
Vin = 800mVrms
Vin = 600mVrms
−27
Vin = 400mVrms
−28
10
100
1k
Frequency (Hz)
10k
100k
Rev.2, Jul. 1998, page 27 of 29
HA12219NT
Package Dimensions
Unit: mm
19.2
20.32 Max
22
6.3
1
7.4 Max
12
11
1.0
1.78 ± 0.25
0.48 ± 0.10
0.51 Min
1.17 Max
2.90 Min 5.06 Max
0.89
7.62
+ 0.10
0.25 Ð 0.05
0¡ Ð 15¡
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
Rev.2, Jul. 1998, page 28 of 29
DP-22NS
Ñ
Conforms
0.90 g
HA12219NT
Disclaimer
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
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Copyright  Hitachi, Ltd., 2000. All rights reserved. Printed in Japan.
Colophon 2.0
Rev.2, Jul. 1998, page 29 of 29