UPD7759C NEC [NEC], UPD7759C Datasheet - Page 9

• Manufacturer Part Number: UPD7759C
• Description: ADPCM SPEECH SYNTHESIZER LSIs
• Manufacturer: NEC [NEC]

(2)
TIMING CHART (at reset)
(1)
(2)
BUSY output delay
Speech output delay
BUSY hold time
ALE pulse width
Higher address set up time
Higher address hold time
AEN pulse width
DRQ output delay
Higher address pulse width
DRQ pulse width
ROM read cycle time
SWITCHING CHARACTERISTICS
RESET
ST
BUSY
RESET
Parameters
t
RST
t
RS
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
MRO
SBO
SSO
AEN
DCC
BD
AL
AE
LA
EA
LC
AC
LL
In operation mode, from ST
In operation mode, from BUSY
from synthesis
for ALE
for AEN
from ALE
from AEN
from ALE
Conditions
t
RB
MIN.
TYP.
6.25
3.13
3.13
3.13
14.1
3.13
6.25
7.81
37.5
2.1
0
0
MAX.
2.2
10
15
PD7759
Unit
ms
s
s
s
s
s
s
s
s
s
s
s
s
9