diff --git a/src/avrdude.conf.in b/src/avrdude.conf.in
index c0ba9c4b..bf2892aa 100644
--- a/src/avrdude.conf.in
+++ b/src/avrdude.conf.in
@@ -8215,6 +8215,7 @@ part parent "m48"
     id               = "m48pb";
     desc             = "ATmega48PB";
     signature        = 0x1e 0x92 0x10;
+    chip_erase_delay = 10500;
   ;
 
 #------------------------------------------------------------
@@ -8442,6 +8443,7 @@ part parent "m88"
     id               = "m88pb";
     desc             = "ATmega88PB";
     signature        = 0x1e 0x93 0x16;
+    chip_erase_delay = 10500;
   ;
 
 #------------------------------------------------------------
@@ -8671,6 +8673,7 @@ part parent "m168"
     id              = "m168pb";
     desc            = "ATmega168PB";
     signature       = 0x1e 0x94 0x15;
+    chip_erase_delay = 10500;
   ;
 
 #------------------------------------------------------------
@@ -9827,6 +9830,7 @@ part parent "m328"
     id              = "m328pb";
     desc            = "ATmega328PB";
     signature       = 0x1e 0x95 0x16;
+    chip_erase_delay = 10500;
 
     memory "efuse"
         size = 1;